This error is typically caused by a connection issue or data issue when importing transactions to the batch but fortunately usually only effects on transaction within the batch.
It should be clear which transaction is causing the issue as the Error or Verification box provides the Reference number and which line of the batch it is.
If you wish to keep the transaction in the batch you can enter a Nominal Account into the Nominal column of the Lines tab, this will create an entry in the Nominals tab automatically and allow you to post the batch.
Failing that we advise that the affected transaction be removed from the batch and the batch processed as usual. Then have the removed transaction raised manually against the account.
