Enable Audit Table
If a database table is disabled and not maintaining audit data, you can enable it at anytime and resume the audit functionality.
From the Audit Tables page, select the table for which you want to collect and maintain audit data and select Enable auditing. The green check mark in the Auditing enabled column appears and the Enable auditing button changes to Disable auditing.
There is also a “Enable or disable audit tables” global change process you can use to help enable or disable auditing for multiple tables at one time.