diff --git a/backend/src/graphql/resolver/ContributionLinkResolver.test.ts b/backend/src/graphql/resolver/ContributionLinkResolver.test.ts
index 4563d2a6a..606bce109 100644
--- a/backend/src/graphql/resolver/ContributionLinkResolver.test.ts
+++ b/backend/src/graphql/resolver/ContributionLinkResolver.test.ts
@@ -266,7 +266,7 @@ describe('Contribution Links', () => {
           )
         })
 
-        it('logs the error thrown', () => {
+        it('logs the error "A Start-Date must be set"', () => {
           expect(logger.error).toBeCalledWith('A Start-Date must be set')
         })
 
@@ -287,7 +287,7 @@ describe('Contribution Links', () => {
           )
         })
 
-        it('logs the error thrown', () => {
+        it('logs the error "An End-Date must be set"', () => {
           expect(logger.error).toBeCalledWith('An End-Date must be set')
         })
 
@@ -311,7 +311,7 @@ describe('Contribution Links', () => {
           )
         })
 
-        it('logs the error thrown', () => {
+        it('logs the error "The value of validFrom must before or equals the validTo"', () => {
           expect(logger.error).toBeCalledWith(
             `The value of validFrom must before or equals the validTo`,
           )
@@ -334,7 +334,7 @@ describe('Contribution Links', () => {
           )
         })
 
-        it('logs the error thrown', () => {
+        it('logs the error "The value of name is too short"', () => {
           expect(logger.error).toBeCalledWith('The value of name is too short', 3)
         })
 
@@ -355,7 +355,7 @@ describe('Contribution Links', () => {
           )
         })
 
-        it('logs the error thrown', () => {
+        it('logs the error "The value of name is too long"', () => {
           expect(logger.error).toBeCalledWith('The value of name is too long', 101)
         })
 
@@ -376,7 +376,7 @@ describe('Contribution Links', () => {
           )
         })
 
-        it('logs the error thrown', () => {
+        it('logs the error "The value of memo is too short"', () => {
           expect(logger.error).toBeCalledWith('The value of memo is too short', 3)
         })
 
@@ -397,7 +397,7 @@ describe('Contribution Links', () => {
           )
         })
 
-        it('logs the error thrown', () => {
+        it('logs the error "The value of memo is too long"', () => {
           expect(logger.error).toBeCalledWith('The value of memo is too long', 256)
         })
 
@@ -418,7 +418,7 @@ describe('Contribution Links', () => {
           )
         })
 
-        it('logs the error thrown', () => {
+        it('logs the error "The amount must be a positiv value"', () => {
           expect(logger.error).toBeCalledWith('The amount must be a positiv value', new Decimal(0))
         })
       })
@@ -476,7 +476,7 @@ describe('Contribution Links', () => {
           })
         })
 
-        it('logs the error thrown', () => {
+        it('logs the error "Contribution Link not found"', () => {
           expect(logger.error).toBeCalledWith('Contribution Link not found', -1)
         })
 
@@ -546,7 +546,7 @@ describe('Contribution Links', () => {
             )
           })
 
-          it('logs the error thrown', () => {
+          it('logs the error "Contribution Link not found"', () => {
             expect(logger.error).toBeCalledWith('Contribution Link not found', -1)
           })
         })
diff --git a/backend/src/graphql/resolver/ContributionMessageResolver.test.ts b/backend/src/graphql/resolver/ContributionMessageResolver.test.ts
index 8b5c5a0a7..642844e31 100644
--- a/backend/src/graphql/resolver/ContributionMessageResolver.test.ts
+++ b/backend/src/graphql/resolver/ContributionMessageResolver.test.ts
@@ -113,7 +113,7 @@ describe('ContributionMessageResolver', () => {
           )
         })
 
-        it('logs the error thrown', () => {
+        it('logs the error "ContributionMessage was not sent successfully: Error: Contribution not found"', () => {
           expect(logger.error).toBeCalledWith(
             'ContributionMessage was not sent successfully: Error: Contribution not found',
             new Error('Contribution not found'),
@@ -153,7 +153,7 @@ describe('ContributionMessageResolver', () => {
           )
         })
 
-        it('logs the error thrown', () => {
+        it('logs the error "ContributionMessage was not sent successfully: Error: Admin can not answer on his own contribution"', () => {
           expect(logger.error).toBeCalledWith(
             'ContributionMessage was not sent successfully: Error: Admin can not answer on his own contribution',
             new Error('Admin can not answer on his own contribution'),
@@ -251,7 +251,7 @@ describe('ContributionMessageResolver', () => {
           )
         })
 
-        it('logs the error thrown', () => {
+        it('logs the error "ContributionMessage was not sent successfully: Error: Contribution not found"', () => {
           expect(logger.error).toBeCalledWith(
             'ContributionMessage was not sent successfully: Error: Contribution not found',
             new Error('Contribution not found'),
@@ -283,7 +283,7 @@ describe('ContributionMessageResolver', () => {
           )
         })
 
-        it('logs the error thrown', () => {
+        it('logs the error "ContributionMessage was not sent successfully: Error: Can not send message to contribution of another user"', () => {
           expect(logger.error).toBeCalledWith(
             'ContributionMessage was not sent successfully: Error: Can not send message to contribution of another user',
             new Error('Can not send message to contribution of another user'),
diff --git a/backend/src/graphql/resolver/ContributionResolver.test.ts b/backend/src/graphql/resolver/ContributionResolver.test.ts
index 274067ba0..cc7357e99 100644
--- a/backend/src/graphql/resolver/ContributionResolver.test.ts
+++ b/backend/src/graphql/resolver/ContributionResolver.test.ts
@@ -201,7 +201,7 @@ describe('ContributionResolver', () => {
           expect(errorObjects).toEqual([new GraphQLError('Memo text is too short')])
         })
 
-        it('logs the error found', () => {
+        it('logs the error "Memo text is too short"', () => {
           expect(logger.error).toBeCalledWith('Memo text is too short', 4)
         })
 
@@ -219,7 +219,7 @@ describe('ContributionResolver', () => {
           expect(errorObjects).toEqual([new GraphQLError('Memo text is too long')])
         })
 
-        it('logs the error found', () => {
+        it('logs the error "Memo text is too long"', () => {
           expect(logger.error).toBeCalledWith('Memo text is too long', 259)
         })
 
@@ -238,7 +238,7 @@ describe('ContributionResolver', () => {
           ])
         })
 
-        it('logs the error found', () => {
+        it('logs the error "No information for available creations for the given date"', () => {
           expect(logger.error).toBeCalledWith(
             'No information for available creations for the given date',
             expect.any(Date),
@@ -261,7 +261,7 @@ describe('ContributionResolver', () => {
           ])
         })
 
-        it('logs the error found', () => {
+        it('logs the error "No information for available creations for the given date" again', () => {
           expect(logger.error).toBeCalledWith(
             'No information for available creations for the given date',
             expect.any(Date),
@@ -336,7 +336,7 @@ describe('ContributionResolver', () => {
           expect(errorObjects).toEqual([new GraphQLError('Memo text is too short')])
         })
 
-        it('logs the error found', () => {
+        it('logs the error "Memo text is too short"', () => {
           expect(logger.error).toBeCalledWith('Memo text is too short', 4)
         })
       })
@@ -357,7 +357,7 @@ describe('ContributionResolver', () => {
           expect(errorObjects).toEqual([new GraphQLError('Memo text is too long')])
         })
 
-        it('logs the error found', () => {
+        it('logs the error "Memo text is too long"', () => {
           expect(logger.error).toBeCalledWith('Memo text is too long', 259)
         })
       })
@@ -382,7 +382,7 @@ describe('ContributionResolver', () => {
           )
         })
 
-        it('logs the error found', () => {
+        it('logs the error "Contribution not found"', () => {
           expect(logger.error).toBeCalledWith('Contribution not found', -1)
         })
       })
@@ -411,7 +411,7 @@ describe('ContributionResolver', () => {
           ])
         })
 
-        it('logs the error found', () => {
+        it('logs the error "Can not update contribution of another user"', () => {
           expect(logger.error).toBeCalledWith(
             'Can not update contribution of another user',
             expect.any(Object),
@@ -445,7 +445,7 @@ describe('ContributionResolver', () => {
           ])
         })
 
-        it('logs the error found', () => {
+        it('logs the error "An admin is not allowed to update an user contribution"', () => {
           expect(logger.error).toBeCalledWith(
             'An admin is not allowed to update an user contribution',
           )
@@ -491,7 +491,7 @@ describe('ContributionResolver', () => {
             )
           })
 
-          it('logs the error found', () => {
+          it('logs the error "Contribution can not be updated due to status"', () => {
             expect(logger.error).toBeCalledWith(
               'Contribution can not be updated due to status',
               ContributionStatus.DELETED,
@@ -526,7 +526,7 @@ describe('ContributionResolver', () => {
           ])
         })
 
-        it('logs the error found', () => {
+        it('logs the error "The amount to be created exceeds the amount still available for this month"', () => {
           expect(logger.error).toBeCalledWith(
             'The amount to be created exceeds the amount still available for this month',
             new Decimal(1019),
@@ -553,7 +553,7 @@ describe('ContributionResolver', () => {
           ])
         })
 
-        it('logs the error found', () => {
+        it('logs the error "Month of contribution can not be changed"', () => {
           expect(logger.error).toBeCalledWith('Month of contribution can not be changed')
         })
       })
@@ -657,7 +657,7 @@ describe('ContributionResolver', () => {
           expect(errorObjects).toEqual([new GraphQLError('Contribution not found')])
         })
 
-        it('logs the error found', () => {
+        it('logs the error "Contribution not found"', () => {
           expect(logger.error).toBeCalledWith('Contribution not found', -1)
         })
       })
@@ -701,7 +701,7 @@ describe('ContributionResolver', () => {
           expect(errorObjects).toEqual([new GraphQLError('Contribution not found')])
         })
 
-        it('logs the error found', () => {
+        it('logs the error "Contribution not found"', () => {
           expect(logger.error).toBeCalledWith('Contribution not found', expect.any(Number))
         })
       })
@@ -746,7 +746,7 @@ describe('ContributionResolver', () => {
           expect(errorObjects).toEqual([new GraphQLError('Contribution not found')])
         })
 
-        it('logs the error found', () => {
+        it('logs the error "Contribution not found"', () => {
           expect(logger.error).toBeCalledWith(`Contribution not found`, expect.any(Number))
         })
       })
@@ -791,7 +791,7 @@ describe('ContributionResolver', () => {
           expect(errorObjects).toEqual([new GraphQLError('Contribution not found')])
         })
 
-        it('logs the error found', () => {
+        it('logs the error "Contribution not found"', () => {
           expect(logger.error).toBeCalledWith(`Contribution not found`, expect.any(Number))
         })
       })
@@ -877,7 +877,7 @@ describe('ContributionResolver', () => {
           expect(errorObjects).toEqual([new GraphQLError('Contribution not found')])
         })
 
-        it('logs the error found', () => {
+        it('logs the error "Contribution not found"', () => {
           expect(logger.error).toBeCalledWith('Contribution not found', expect.any(Number))
         })
       })
@@ -907,7 +907,7 @@ describe('ContributionResolver', () => {
           ])
         })
 
-        it('logs the error found', () => {
+        it('logs the error "Can not delete contribution of another user"', () => {
           expect(logger.error).toBeCalledWith(
             'Can not delete contribution of another user',
             expect.any(Contribution),
@@ -981,7 +981,7 @@ describe('ContributionResolver', () => {
           ])
         })
 
-        it('logs the error found', () => {
+        it('logs the error "A confirmed contribution can not be deleted"', () => {
           expect(logger.error).toBeCalledWith(
             'A confirmed contribution can not be deleted',
             expect.objectContaining({ contributionStatus: 'CONFIRMED' }),
@@ -1846,7 +1846,7 @@ describe('ContributionResolver', () => {
               )
             })
 
-            it('logs the error thrown', () => {
+            it('logs the error "Could not find user"', () => {
               expect(logger.error).toBeCalledWith('Could not find user', 'some@fake.email')
             })
           })
@@ -1873,7 +1873,7 @@ describe('ContributionResolver', () => {
               )
             })
 
-            it('logs the error thrown', () => {
+            it('logs the error "Cannot create contribution since the user was deleted"', () => {
               expect(logger.error).toBeCalledWith(
                 'Cannot create contribution since the user was deleted',
                 expect.objectContaining({
@@ -1909,7 +1909,7 @@ describe('ContributionResolver', () => {
               )
             })
 
-            it('logs the error thrown', () => {
+            it('logs the error "Cannot create contribution since the users email is not activated"', () => {
               expect(logger.error).toBeCalledWith(
                 'Cannot create contribution since the users email is not activated',
                 expect.objectContaining({ emailChecked: false }),
@@ -1935,7 +1935,7 @@ describe('ContributionResolver', () => {
                 )
               })
 
-              it('logs the error thrown', () => {
+              it('logs the error "CreationDate is invalid"', () => {
                 expect(logger.error).toBeCalledWith('CreationDate is invalid', 'invalid-date')
               })
             })
@@ -1957,7 +1957,7 @@ describe('ContributionResolver', () => {
                 )
               })
 
-              it('logs the error thrown', () => {
+              it('logs the error "No information for available creations for the given date"', () => {
                 expect(logger.error).toBeCalledWith(
                   'No information for available creations for the given date',
                   new Date(variables.creationDate),
@@ -1982,7 +1982,7 @@ describe('ContributionResolver', () => {
                 )
               })
 
-              it('logs the error thrown', () => {
+              it('logs the error "No information for available creations for the given date"', () => {
                 expect(logger.error).toBeCalledWith(
                   'No information for available creations for the given date',
                   new Date(variables.creationDate),
@@ -2007,7 +2007,7 @@ describe('ContributionResolver', () => {
                 )
               })
 
-              it('logs the error thrown', () => {
+              it('logs the error "The amount to be created exceeds the amount still available for this month"', () => {
                 expect(logger.error).toBeCalledWith(
                   'The amount to be created exceeds the amount still available for this month',
                   new Decimal(2000),
@@ -2058,7 +2058,7 @@ describe('ContributionResolver', () => {
                 )
               })
 
-              it('logs the error thrown', () => {
+              it('logs the error "The amount to be created exceeds the amount still available for this month"', () => {
                 expect(logger.error).toBeCalledWith(
                   'The amount to be created exceeds the amount still available for this month',
                   new Decimal(1000),
@@ -2097,7 +2097,7 @@ describe('ContributionResolver', () => {
               )
             })
 
-            it('logs the error thrown', () => {
+            it('logs the error "Could not find User"', () => {
               expect(logger.error).toBeCalledWith('Could not find User', 'bob@baumeister.de')
             })
           })
@@ -2123,7 +2123,7 @@ describe('ContributionResolver', () => {
               )
             })
 
-            it('logs the error thrown', () => {
+            it('logs the error "User was deleted"', () => {
               expect(logger.error).toBeCalledWith('User was deleted', 'stephen@hawking.uk')
             })
           })
@@ -2149,7 +2149,7 @@ describe('ContributionResolver', () => {
               )
             })
 
-            it('logs the error thrown', () => {
+            it('logs the error "Contribution not found"', () => {
               expect(logger.error).toBeCalledWith('Contribution not found', -1)
             })
           })
@@ -2181,7 +2181,7 @@ describe('ContributionResolver', () => {
               )
             })
 
-            it('logs the error thrown', () => {
+            it('logs the error "User of the pending contribution and send user does not correspond"', () => {
               expect(logger.error).toBeCalledWith(
                 'User of the pending contribution and send user does not correspond',
               )
@@ -2216,7 +2216,7 @@ describe('ContributionResolver', () => {
               )
             })
 
-            it('logs the error thrown', () => {
+            it('logs the error "The amount to be created exceeds the amount still available for this month"', () => {
               expect(logger.error).toBeCalledWith(
                 'The amount to be created exceeds the amount still available for this month',
                 new Decimal(1900),
@@ -2326,7 +2326,7 @@ describe('ContributionResolver', () => {
               )
             })
 
-            it('logs the error thrown', () => {
+            it('logs the error "Contribution not found"', () => {
               expect(logger.error).toBeCalledWith('Contribution not found', -1)
             })
           })
@@ -2466,7 +2466,7 @@ describe('ContributionResolver', () => {
               )
             })
 
-            it('logs the error thrown', () => {
+            it('logs the error "Contribution not found"', () => {
               expect(logger.error).toBeCalledWith('Contribution not found', -1)
             })
           })
@@ -2500,7 +2500,7 @@ describe('ContributionResolver', () => {
               )
             })
 
-            it('logs the error thrown', () => {
+            it('logs the error "Moderator can not confirm own contribution"', () => {
               expect(logger.error).toBeCalledWith('Moderator can not confirm own contribution')
             })
           })
@@ -2595,7 +2595,7 @@ describe('ContributionResolver', () => {
               })
             })
 
-            it('logs the error thrown', () => {
+            it('logs the error "Contribution already confirmed"', () => {
               expect(logger.error).toBeCalledWith(
                 'Contribution already confirmed',
                 expect.any(Number),
diff --git a/backend/src/graphql/resolver/TransactionLinkResolver.test.ts b/backend/src/graphql/resolver/TransactionLinkResolver.test.ts
index fc5ca170a..c6b733d0d 100644
--- a/backend/src/graphql/resolver/TransactionLinkResolver.test.ts
+++ b/backend/src/graphql/resolver/TransactionLinkResolver.test.ts
@@ -94,7 +94,7 @@ describe('TransactionLinkResolver', () => {
           errors: [new GraphQLError('Amount must be a positive number')],
         })
       })
-      it('logs the error thrown', () => {
+      it('logs the error "Amount must be a positive number" - 0', () => {
         expect(logger.error).toBeCalledWith('Amount must be a positive number', new Decimal(0))
       })
 
@@ -112,7 +112,7 @@ describe('TransactionLinkResolver', () => {
           errors: [new GraphQLError('Amount must be a positive number')],
         })
       })
-      it('logs the error thrown', () => {
+      it('logs the error "Amount must be a positive number" - -10', () => {
         expect(logger.error).toBeCalledWith('Amount must be a positive number', new Decimal(-10))
       })
 
@@ -130,7 +130,7 @@ describe('TransactionLinkResolver', () => {
           errors: [new GraphQLError('User has not enough GDD')],
         })
       })
-      it('logs the error thrown', () => {
+      it('logs the error "User has not enough GDD"', () => {
         expect(logger.error).toBeCalledWith('User has not enough GDD', expect.any(Number))
       })
     })
@@ -180,7 +180,7 @@ describe('TransactionLinkResolver', () => {
             })
           })
 
-          it('logs the error thrown', () => {
+          it('logs the error "No contribution link found to given code"', () => {
             expect(logger.error).toBeCalledWith(
               'No contribution link found to given code',
               'CL-123456',
@@ -224,7 +224,7 @@ describe('TransactionLinkResolver', () => {
             await resetEntity(DbContributionLink)
           })
 
-          it('logs the error thrown', () => {
+          it('logs the error "Contribution link is not valid yet"', () => {
             expect(logger.error).toBeCalledWith('Contribution link is not valid yet', validFrom)
             expect(logger.error).toBeCalledWith(
               'Creation from contribution link was not successful',
@@ -263,7 +263,7 @@ describe('TransactionLinkResolver', () => {
             await resetEntity(DbContributionLink)
           })
 
-          it('logs the error thrown', () => {
+          it('logs the error "Contribution link has unknown cycle"', () => {
             expect(logger.error).toBeCalledWith('Contribution link has unknown cycle', 'INVALID')
             expect(logger.error).toBeCalledWith(
               'Creation from contribution link was not successful',
@@ -302,7 +302,7 @@ describe('TransactionLinkResolver', () => {
             await resetEntity(DbContributionLink)
           })
 
-          it('logs the error thrown', () => {
+          it('logs the error "Contribution link is no longer valid"', () => {
             expect(logger.error).toBeCalledWith('Contribution link is no longer valid', validTo)
             expect(logger.error).toBeCalledWith(
               'Creation from contribution link was not successful',
@@ -394,7 +394,7 @@ describe('TransactionLinkResolver', () => {
               })
             })
 
-            it('logs the error thrown', () => {
+            it('logs the error "Creation from contribution link was not successful"', () => {
               expect(logger.error).toBeCalledWith(
                 'Creation from contribution link was not successful',
                 new Error(
@@ -451,7 +451,7 @@ describe('TransactionLinkResolver', () => {
               })
             })
 
-            it('logs the error thrown', () => {
+            it('logs the error "Creation from contribution link was not successful"', () => {
               expect(logger.error).toBeCalledWith(
                 'Creation from contribution link was not successful',
                 new Error('Contribution link already redeemed today'),
@@ -503,7 +503,7 @@ describe('TransactionLinkResolver', () => {
                 })
               })
 
-              it('logs the error thrown', () => {
+              it('logs the error "Creation from contribution link was not successful"', () => {
                 expect(logger.error).toBeCalledWith(
                   'Creation from contribution link was not successful',
                   new Error('Contribution link already redeemed today'),
@@ -620,7 +620,7 @@ describe('TransactionLinkResolver', () => {
             })
           })
 
-          it('logs the error thrown', () => {
+          it('logs the error "Could not find requested User"', () => {
             expect(logger.error).toBeCalledWith('Could not find requested User', -1)
           })
         })