Thanks for reaching out to us. Can you provide more information regarding the issue?
Did your girlfriend ever have the Testlive installed?
As @Narelle mentioned, it seems you are trying to run the Testlive Client.
Have you tried to uninstall and perform a full reinstall of the main game? Also, if possible, try to use a different driver or create a new folder for the new install.
Please let us know if the issue persists.