I don't know what Cat's Claw is, but if you're running XP have you tried the restore points by going back when the program was installed and see if the error disappears and how are you uninstalling it?
HP Envy x2 review: Hands-on
How Sketch and InVision have revolutionised our design workflow
The best tech gifts for Christmas 2017
Les meilleurs jeux de société (2017)