Error occurred while moving employees' year-to-date payroll information to last year = SAGE 50 Pro 2018

SOLVED

I understand from this forum that this has been a consistent problem for many. I have tried to clear financial history and have completed an advanced data check. I have also tried to restore an earlier file but nothing seems to be working.  Can anyone give me suggestions on what else I can try?  SAGE states that they won't support 2018, which upsets me as I only purchased it last year.

Thank you!