Teamviewer Manager greyed out (limited use)

I'm having some issues with Teamviewer Manager, it's shows everything greyed out and the title bar show "Testingphase completed, limited use!" (translated)

I connect to a central SQL database, other users don't have any issues, my Teamviewer 12 is licensed for Corporate (3 channels).

I've tried uninstalling Teamviewer and Teamviewer Manager, rebooting and reinstalling the application (i've selected in the uninstall to remove my settings), but that doesn't seem to resolve the issue.