Have you tried to install FiveM when your GTA doesn’t have mods installed? I say this as FiveM needs a clean GTA directory and yours seems to have scripthook install (dinput8.DLL and asiloader.log are both present, along with a trainer).
It is said somewhere (I think it says something in the troubleshooting FAQ) that having modifications in the GTA directory can cause issues with FiveM.
Also, for future reference, @vemund98 if you have an issue post a new topic, don’t try and hijack someone else’s thread.