Hi. Old thread, but in case anyone's still having this issue:
I had the same problem. Seems to be related to old monitor setups after 1.02 update. I had two (unused) different profiles in \Eagle Dynamics\Ka-50\Config\MonitorSetup, deleted them (restoring to default) and haven't had any errors since.
For reference, there should be four files in the folder:
1camera.lua
3cameras.lua
shkval+camera.lua
shkval+camera+abris.lua
Hopefully you still have them.