Error "Incorrect number of General Ledger Entries found."

Hi, after doing “bench update” I get this error when trying to submit a Delivery Note:
"Incorrect number of General Ledger Entries found. You might have selected a wrong Account in the transaction.

What does this mean and where to change a correct “Account in the transaction”?
Thanks,
Matej

Seems like you have entered warehouse account in the “Expense Account” field. Please check and confirm. Another option might be you have entered "target warehouse " same as from warehouse.