Steinberg Lisence Engine is Not Responding

Hi All,
I have a problem with Steinberg Activation manager.
Every time I start it, a window pops up with the message “An unknown error occurred while connecting to the Steinberg License Engine. Please restart your computer and try again”.
After restarting, this window pops up again.
I’ve tried reinstalling the Steinberg Activation Manager but with no success.
I work with Wavelab 11.
Everything was working for me, but now I can’t open the program .
I have attached the Steinberg-Activation-Manager-Diagnostics in case it helps
Thank you
Stefan (25.5 KB)