Dot Net Error when starting Utility

[Courgan2k4]

Hi, since a couple of days I got a dotNet error when I am starting the utility. Regardless which version of the utility I try to start. Tried with the last three.
dotNet 4.8 is installed. Using latest Win10.

Attached is the dotNet error log.

Maybe someone has an idea

Thank you very much in advance.

Courgan