There can sometimes be differences between the sum of transaction values and the totals held in the nominal account records. Check the following:
Establish whether the problem is with transactions, records, or both — by comparing the Trial Balance reports with extracts from the Transaction Enquiry screen.
Check when, or if, the Trial Balance was last correct.
Contact the support team to investigate, providing your findings from the checks above. If you have trouble reaching us, see Get support in Access Financials.