Jake, you cannot regenerate the audit reports, but you can get the same information from the IMan database. The following query will return the auditlog from the database; this isn't perfect but should suffice for getting an important data out.

Obviously replace the parts of the Query with the date and Job Id.

select * from AUDITLOG
where PROCESSID = 'JOBID' and TIMESTAMP >= '2019-03-10'
order by ID asc