diff --git a/src/logic/safe/store/actions/processTransaction.ts b/src/logic/safe/store/actions/processTransaction.ts
index 8d31d343ab..a8a352bf41 100644
--- a/src/logic/safe/store/actions/processTransaction.ts
+++ b/src/logic/safe/store/actions/processTransaction.ts
@@ -32,6 +32,7 @@ interface ProcessTransactionArgs {
   safeAddress: string
   tx: Transaction
   userAddress: string
+  thresholdReached: boolean
 }
 
 type ProcessTransactionAction = ThunkAction<Promise<void | string>, AppReduxState, DispatchReturn, AnyAction>
@@ -42,6 +43,7 @@ export const processTransaction = ({
   safeAddress,
   tx,
   userAddress,
+  thresholdReached,
 }: ProcessTransactionArgs): ProcessTransactionAction => async (
   dispatch: Dispatch,
   getState: () => AppReduxState,
@@ -56,7 +58,7 @@ export const processTransaction = ({
   const isExecution = approveAndExecute || (await shouldExecuteTransaction(safeInstance, nonce, lastTx))
   const safeVersion = await getCurrentSafeVersion(safeInstance)
 
-  const preApprovingOwner = approveAndExecute ? userAddress : undefined
+  const preApprovingOwner = approveAndExecute && !thresholdReached ? userAddress : undefined
   let sigs = generateSignaturesFromTxConfirmations(tx.confirmations, preApprovingOwner)
 
   if (!sigs) {
diff --git a/src/logic/safe/transactions/__tests__/gas.test.ts b/src/logic/safe/transactions/__tests__/gas.test.ts
index 828d1e64f6..028796ad20 100644
Binary files a/src/logic/safe/transactions/__tests__/gas.test.ts and b/src/logic/safe/transactions/__tests__/gas.test.ts differ
diff --git a/src/logic/safe/transactions/gas.ts b/src/logic/safe/transactions/gas.ts
index fa220bacd8..7e20aedebe 100644
--- a/src/logic/safe/transactions/gas.ts
+++ b/src/logic/safe/transactions/gas.ts
@@ -25,6 +25,21 @@ const parseRequiredTxGasResponse = (data: string): number => {
   return data.match(/.{2}/g)?.reduce(reducer, 0)
 }
 
+interface ErrorDataJson extends JSON {
+  originalError?: {
+    data?: string
+  }
+  data?: string
+}
+
+const getJSONOrNullFromString = (stringInput: string): ErrorDataJson | null => {
+  try {
+    return JSON.parse(stringInput)
+  } catch (error) {
+    return null
+  }
+}
+
 // Parses the result from the error message (GETH, OpenEthereum/Parity and Nethermind) and returns the data value
 export const getDataFromNodeErrorMessage = (errorMessage: string): string | undefined => {
   // Replace illegal characters that often comes within the error string (like � for example)
@@ -35,7 +50,13 @@ export const getDataFromNodeErrorMessage = (errorMessage: string): string | unde
   const [, ...error] = normalizedErrorString.split('\n')
 
   try {
-    const errorAsJSON = JSON.parse(error.join(''))
+    const errorAsString = error.join('')
+    const errorAsJSON = getJSONOrNullFromString(errorAsString)
+
+    // Trezor wallet returns the error not as an JSON object but directly as string
+    if (!errorAsJSON) {
+      return errorAsString.length ? errorAsString : undefined
+    }
 
     // For new GETH nodes they will return the data as error in the format:
     // {
diff --git a/src/routes/safe/components/Transactions/TxsTable/ExpandedTx/ApproveTxModal/index.tsx b/src/routes/safe/components/Transactions/TxsTable/ExpandedTx/ApproveTxModal/index.tsx
index 88c5c99437..f09395b108 100644
--- a/src/routes/safe/components/Transactions/TxsTable/ExpandedTx/ApproveTxModal/index.tsx
+++ b/src/routes/safe/components/Transactions/TxsTable/ExpandedTx/ApproveTxModal/index.tsx
@@ -105,6 +105,7 @@ export const ApproveTxModal = ({
         userAddress,
         notifiedTransaction: TX_NOTIFICATION_TYPES.CONFIRMATION_TX,
         approveAndExecute: canExecute && approveAndExecute && isTheTxReadyToBeExecuted,
+        thresholdReached,
       }),
     )
     onClose()