Rover Data

Appearance

Application Error Upon Logging In (Legacy Client) ​

1 min read
Administration

Application Error Upon Logging In

Resolution Steps ​

1. Repair the M3 Client Installation ​

  1. Open Control Panel > Programs > Uninstall a program
  2. Locate Millenium 3 in the list of installed programs
  3. Click Change
  4. Select the Repair option
  5. Follow the prompts to complete the repair process

2. Reinstall the M3 Client (If Repair Fails) ​

If repairing the installation does not resolve the issue:

  1. Uninstall the M3 client completely
  2. Download or obtain the latest version of the M3 client installer
  3. Perform a fresh installation of the client

Verification ​

  • [ ] After repairing or reinstalling, attempt to log in to M3
  • [ ] Confirm that the error message no longer appears and that the application launches successfully

Note: Administrative privileges may be required to repair or reinstall the M3 client. If the issue persists after a fresh install, consult your IT administrator or RoverERP support for further assistance.

Additional Information ​

  • Regularly update Windows and ensure updates complete successfully to prevent registry corruption
  • Always back up important data before performing repairs or reinstallations