Clan Wars does not work!

Hey guys,
I bought the theme like 4 days ago and before I installed it to my webspace I deleted the “old” webspace to start completly new.

So every other plugin works in this theme, instead of Clan Wars.
Everytime after I created a match or game, I want to click on it again to edit them. But once I try, the browser gets blank. I have to use the “back” button, to get back to the settings.

So maybe I did something wrong but I dont know what. Maybe someone can help me.