PE hung up for good

Hey guys,

my PE’s variables hung up for good and I cannot modify anything anymore. I cannot select any of the buttons, the values are stuck. Restarting the PC did not recover it, nor trying again 3 days later.
Will I have to uninstall PiTool/PE completely and delete all remains, or is there an easier way?

I can still move around.

Best regards

P.S. Everytime I select “SteamVR” games, the entire PE grinds to almost a halt (5-10fps) which lasts up to 5 seconds.