After update 8.0.20 Cubase Artist doesn't startup


after updating to version 8.0.20 Cubase Artist gets stuck on initializing.
First 2 times it says Reaktor (Native Instruments) needs to lokate the enigma file and than stops initializing.
If I use Reaktor in, say, Mixcraft there’s no problems at all.
Now it’s stuck on some plugin (RkExt).
In other words it won’t startup.
Please help, what can I do?

regards Jacobus

Reïnstalling solved the problem.