I made a full reinstallation. And now it works.

20171013_214053
VER:10000 BUILD:10009
PLATFORM: WINDOWS
WinVer:6.1.7601.23915
0: NVIDIA GeForce GT 120
CPU String: GenuineIntel
Stepping ID = 7
Model = 7
Family = 6
Extended model = 1
CLFLUSH cache line size = 64
APIC Physical ID = 1
CPU Brand String: Intel(R) Core(TM)2 Quad CPU Q8200 @ 2.33GHz ...

I already host a game and it's still going. But now i can't make a new challenge. The game freezes and it says this:
Unhandled Exeception!
Exp Address: 0x004909093D
Exp Code: 0x0000094 Exp Flags: 0