Hey Juergen-
Agreed that this sounds like an iLok problem.
I am guessing since you recently purchased these plugins, you recently downloaded the iLok License Manager. Even still, can you confirm that you are using the latest iLok License Manager? (www.ilok.com).
Additionally, do you have the iLok License Manager open when this crash occurs? You don't need to have the application running while using our plugins – just when you activate/deactivate licenses.
-Tom
