Access Violation at Address Error using OMSI

Hey there.
I was working with OMSI I and tried selecting MAN NL202 bus, when this error notification popped up. It was in German, but it roughly means “Access violation at address 004066D3 in module 'Omsi.exe'. Write of address FFFFFFF9”.

Does anyone know how to fix this?
I need help.
Thank you!
