Error when starting Cubase AI 12 with UR22C

Hi, when I’m starting Cubase I always get three errors but the files are there:

After some seconds Cubases freezes and is not coming back (waited 15 Minutes)

Tried uninstalling and reinstalling UR-C extension, same error.
Does anybody know how to solve this?

UR22C has been updated to latest firmware.
I had Cubase 11 and 12 installed so I removed 11 but did not help

Greetings, Martin