diff --git a/backend/src/graphql/resolvers/BalanceResolver.ts b/backend/src/graphql/resolvers/BalanceResolver.ts
index 4c83bbbcd..642f32975 100644
--- a/backend/src/graphql/resolvers/BalanceResolver.ts
+++ b/backend/src/graphql/resolvers/BalanceResolver.ts
@@ -20,23 +20,23 @@ export class BalanceResolver {
 
     const userEntity = await userRepository.findByPubkeyHex(context.pubKey)
     const balanceEntity = await balanceRepository.findByUser(userEntity.id)
-    let balance: Balance
     const now = new Date()
-    if (balanceEntity) {
-      balance = new Balance({
-        balance: roundFloorFrom4(balanceEntity.amount),
-        decay: roundFloorFrom4(
-          await calculateDecay(balanceEntity.amount, balanceEntity.recordDate, now),
-        ),
-        decay_date: now.toString(),
-      })
-    } else {
-      balance = new Balance({
+
+    // No balance found
+    if (!balanceEntity) {
+      return new Balance({
         balance: 0,
         decay: 0,
         decay_date: now.toString(),
       })
     }
-    return balance
+
+    return new Balance({
+      balance: roundFloorFrom4(balanceEntity.amount),
+      decay: roundFloorFrom4(
+        await calculateDecay(balanceEntity.amount, balanceEntity.recordDate, now),
+      ),
+      decay_date: now.toString(),
+    })
   }
 }
diff --git a/backend/src/graphql/resolvers/TransactionResolver.ts b/backend/src/graphql/resolvers/TransactionResolver.ts
index f079da9ca..f90eafff3 100644
--- a/backend/src/graphql/resolvers/TransactionResolver.ts
+++ b/backend/src/graphql/resolvers/TransactionResolver.ts
@@ -50,7 +50,7 @@ async function calculateAndAddDecayTransactions(
   const transactionIndiced: dbTransaction[] = []
   transactions.forEach((transaction: dbTransaction) => {
     transactionIndiced[transaction.id] = transaction
-    if (transaction.transactionTypeId === 2) {
+    if (transaction.transactionTypeId === TransactionTypeId.SEND) {
       involvedUserIds.push(transaction.transactionSendCoin.userId)
       involvedUserIds.push(transaction.transactionSendCoin.recipiantUserId)
     }
@@ -97,7 +97,7 @@ async function calculateAndAddDecayTransactions(
       }
     }
 
-    // sender or receiver when user has sended money
+    // sender or receiver when user has sent money
     // group name if creation
     // type: gesendet / empfangen / geschöpft
     // transaktion nr / id
@@ -231,7 +231,7 @@ export class TransactionResolver {
       email: userEntity.email,
     })
     if (!resultGDTSum.success) throw new Error(resultGDTSum.data)
-    transactions.gdtSum = resultGDTSum.data.sum
+    transactions.gdtSum = resultGDTSum.data.sum || 0
 
     // get balance
     const balanceRepository = getCustomRepository(BalanceRepository)
diff --git a/backend/src/typeorm/repository/Balance.ts b/backend/src/typeorm/repository/Balance.ts
index 2cec58fdf..0938191e0 100644
--- a/backend/src/typeorm/repository/Balance.ts
+++ b/backend/src/typeorm/repository/Balance.ts
@@ -4,8 +4,6 @@ import { Balance } from '../entity/Balance'
 @EntityRepository(Balance)
 export class BalanceRepository extends Repository<Balance> {
   findByUser(userId: number): Promise<Balance | undefined> {
-    return this.createQueryBuilder('balance')
-      .where('balance.userId = :userId', { userId })
-      .getOneOrFail()
+    return this.createQueryBuilder('balance').where('balance.userId = :userId', { userId }).getOne()
   }
 }
diff --git a/docker-compose.override.yml b/docker-compose.override.yml
index fda88943d..d14ce50f5 100644
--- a/docker-compose.override.yml
+++ b/docker-compose.override.yml
@@ -43,11 +43,13 @@ services:
   # DATABASE ##############################################
   ########################################################
   database:
-    # we always run on prouction here since else the service lingers
+    # we always run on production here since else the service lingers
     # feel free to change this behaviour if it seems useful
-    #image: gradido/database:test_up
-    #build:
-    #  target: test_up
+    # Due to problems with the volume caching the built files
+    # we changed this to test build. This keeps the service running.
+    image: gradido/database:test_up
+    build:
+      target: test_up
     #networks:
     #  - external-net
     #  - internal-net
diff --git a/frontend/src/graphql/queries.js b/frontend/src/graphql/queries.js
index 0aadb3345..c11abee50 100644
--- a/frontend/src/graphql/queries.js
+++ b/frontend/src/graphql/queries.js
@@ -32,7 +32,7 @@ export const loginViaEmailVerificationCode = gql`
 `
 
 export const transactionsQuery = gql`
-  query($currentPage: Int = 1, $pageSize: Int = 25, $order: String = "DESC") {
+  query($currentPage: Int = 1, $pageSize: Int = 25, $order: Order = DESC) {
     transactionList(currentPage: $currentPage, pageSize: $pageSize, order: $order) {
       gdtSum
       count