Error 11 during Payroll

I am getting an Error 11 while attempting to run the Employer's Expense Summary in the Payroll module. The instructions that I've seen when searching this often seem to involve rebuilding or deleting and replacing files, but the files suggested change depending on the exact scenario, so I thought I'd better ask. I've attached screenshots of the error messages. Please let me know if any other information is needed.

Also, if I need to rebuild files, is this going to damage the information in the payroll run that I am currently attempting to complete?