System Locks up When Running Credit Cards

The information in this article applies to:
  • Retail Pro 8.52
  • PC Charge

System locks up when trying to tender by Credit Card. Also an error message pops up after logging in stating Class not Registered and on has an OK button.

Corruption in the WS folder.

Rename the workstation folder and let RPRO recreate it. You then have to put the preferences back into the system.