Crash while loading after entering the license code

[sluggy]

Hi,
Today I've bought my license. When I entered the code, everything worked OK, but when I started the game next time, the screen got black and game seemed to be completely frozen.

I tried to delete the license file located at the root folder and then started the game again. Everything was just like before that and I had to enter the license code again and kRP worked. But next launching the game crashed again. Does anybody else have the same problem?