If you're not worried about losing your profiles, try this.

Download and install Revo Uninstaller (Free Version). Find TriXX and use the Advanced setting while uninstalling. After the uninstall completes, hit next in Revo and wait for it to complete scanning. Once it's done hit next, check everything, and hit delete.

Hit next (or done, I don't remember) and then reinstall TriXX. If that fails, try the same uninstall procedure and install 4.0.1 instead of 4.0.2