diff --git a/backend/src/graphql/resolvers/posts.spec.ts b/backend/src/graphql/resolvers/posts.spec.ts
index 7f679d2b9..01550b04a 100644
--- a/backend/src/graphql/resolvers/posts.spec.ts
+++ b/backend/src/graphql/resolvers/posts.spec.ts
@@ -27,6 +27,12 @@ let server: ApolloServer
 let authenticatedUser
 let query, mutate
 
+const loggerErrorMock: (e) => void = jest.fn()
+
+jest.mock('@src/logger', () => ({
+  error: (e) => loggerErrorMock(e),
+}))
+
 beforeAll(async () => {
   await cleanDatabase()
 
@@ -1396,6 +1402,10 @@ describe('pin posts', () => {
           errors: [{ message: 'Pinned posts are not allowed!' }],
         })
       })
+
+      it('logs the error', () => {
+        expect(loggerErrorMock).toBeCalledWith('Pinned posts are not allowed!')
+      })
     })
 
     describe('MAX_PINNED_POSTS is 1', () => {
@@ -1916,6 +1926,10 @@ describe('pin posts', () => {
                   errors: [{ message: 'Max number of pinned posts is reached!' }],
                 })
               })
+
+              it('logs the error', () => {
+                expect(loggerErrorMock).toBeCalledWith('Max number of pinned posts is reached!')
+              })
             })
 
             describe('post ordering', () => {
diff --git a/backend/src/graphql/resolvers/posts.ts b/backend/src/graphql/resolvers/posts.ts
index cef255634..b70d2bf12 100644
--- a/backend/src/graphql/resolvers/posts.ts
+++ b/backend/src/graphql/resolvers/posts.ts
@@ -110,7 +110,7 @@ export default {
     },
   },
   Mutation: {
-    CreatePost: async (_parent, params, context, _resolveInfo) => {
+    CreatePost: async (_parent, params, context: Context, _resolveInfo) => {
       const { categoryIds, groupId } = params
       const { image: imageInput } = params
 
@@ -188,11 +188,14 @@ export default {
         }
         return post
       } catch (e) {
-        if (e.code === 'Neo.ClientError.Schema.ConstraintValidationFailed')
+        if (e.code === 'Neo.ClientError.Schema.ConstraintValidationFailed') {
+          context.logger.error('Post with this slug already exists!')
           throw new UserInputError('Post with this slug already exists!')
+        }
+        context.logger.error('CreatePost error', e.message)
         throw new Error(e)
       } finally {
-        session.close()
+        await session.close()
       }
     },
     UpdatePost: async (_parent, params, context, _resolveInfo) => {
@@ -344,7 +347,10 @@ export default {
       }
     },
     pinPost: async (_parent, params, context: Context, _resolveInfo) => {
-      if (CONFIG.MAX_PINNED_POSTS === 0) throw new Error('Pinned posts are not allowed!')
+      if (CONFIG.MAX_PINNED_POSTS === 0) {
+        context.logger.error('Pinned posts are not allowed!')
+        throw new Error('Pinned posts are not allowed!')
+      }
       let pinnedPostWithNestedAttributes
       const { driver, user } = context
       const session = driver.session()
@@ -404,6 +410,7 @@ export default {
           })
         ).records.map((r) => Number(r.get('count').toString()))
         if (currentPinnedPostCount >= CONFIG.MAX_PINNED_POSTS) {
+          context.logger.error('Max number of pinned posts is reached!')
           throw new Error('Max number of pinned posts is reached!')
         }
         const [pinPostResult] = (
@@ -506,6 +513,7 @@ export default {
       ).records.map((record) => record.get('post'))
 
       if (posts.length !== 1) {
+        context.logger.error('pushPost: Could not find Post')
         throw new Error('Could not find Post')
       }
 
@@ -523,6 +531,7 @@ export default {
       ).records.map((record) => record.get('post'))
 
       if (posts.length !== 1) {
+        context.logger.error('unpushPost: Could not find Post')
         throw new Error('Could not find Post')
       }