May contain reference “File Can’t be Found”.

Odds are that their "C" drive isn't called the "C" drive so program can't be found or the TBData file has been renamed, moved or deleted. Example TBData03152019.

Confirm first the location of the Data File from the About Screen or under Setup/Utilities>Company Setup:

Then in file explorer proceed to location of data file and check the name.  If appended, change it back to TBData.mdb.

If you need additional assistance, then please create a support ticket so that we can contact you directly.