Are you aware if anything has changed in your controller's working environment, such as getting a new computer or network settings, or upgrading Office? What version of Quik Link are you running?

Is the error in loading the program or trying to open a spreadsheet?

This error usually is due to an incorrect path, such as trying to locate Excel, or the location of the data in the links. You might want to try removing the icon used for launching Quik Link and reinstall, just in case a system change lost a setting for Quik Link.

That's about all I can offer for now.

Regards,
Softrak Support