When I want to create a new alliance, game is crashing. What should I do?

WIP
The idea is to make the ck2 map with ALL its provinces and transfer its bookmarks, minimum High Middle Ages (1066)
I need help with the scenarios, so i will leave the work i have available for download for bug reporting and support
 
Provinces done:
31%
625 / 1994
 
 
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Hi guys. I made Anatolia 1337 scenario. Sorry for the mistakes.
Merhaba dostlar. 1337 yılının Anadolu senaryosunu yaptım sizler için. Hatalar varsa özür dilerim ve belirtirseniz sevinirim.
 
 
 

AoC II Anadolu 1337 Mod.rar

This is my new scenario of Europe I made

This is a upcoming map to be made
I have a project map ready