Crashing DAW when Cycling / Loading Presets

Hi guys! when I change the preset in serum, cubase crashing. How to fix this problem? :(

I don't see you registered for Serum. The issue is likely related. Please use the contact form if I can help you locate your registration.

The same here T

I don't see you registered for Serum - the problem could be very related to not being registered..