You must provide a value for the Audit Issue attribute Error

When trying to complete the audit on a Expense Report, the unknown error message: 'You must provide a value for the Audit Issue attribute Error' occurs

After clicking 'Complete Audit' an error message comes up saying 'You must provide a value for the Audit Issue attribute.' The Audit Issue column is not one that ever comes up when auditing an expense report. We have audit rules set so specific transactions come through to the auditor such as accommodations over $500 etc .With our p-cards, we can’t edit the amount of the transaction, we can edit the amount in the itemization and do that frequently.