I'm kind of new to speedrunning and just installed LiveSplit. I use the splits and the layouts given in the resources tab here and activated autosplitter but it just won't start nor split on it's own when i play the game. I tried to run Live Split as admin, before and after launching the game and I have Global Hotkey enabled. I don't know what to do.

Make sure you're using In Game Time on livesplit (Right click -> Compare against -> game time). Also if you post a screenshot of your autosplitter settings that would be helpful

I was already using this setting but thanks for the quick answer ! I didn't touch anything to the settings of the autosplitter, I just activate it and leave it like that, with start, split and reset checked and all the speedrun splits already checked.

Here is a video where i show all my LiveSplit settings :