Version 4.5 client - restored from Thursday and from Wednesday. Open any data entry screen from AP, AR, or PO and says it cannot find JobCost or JCTransaction or other Job Cost Related table. I go back to a 4.5 install from 2014 and it is fine. If I replace the MAS_System subdirectory from the 2014 and the restores work fine. The reason for the restore is an introduction to the crypto virus on Friday.