If your figure in the Balance Sheet is wrong, run the Data Integrity check:
Go to Periodic, Check record in file, and Data Integrity Check.
Ensure to mark all.
Click OK.
Check the report:
If there is a YES to a certain detail, you need to correct the transaction
If all data is NO, it means your data is in good condition
Check Bad Record:
Go to housekeeping, check records in file, look for a bad record.
Click check, click list to see the list of bad records.