Ok now here's the solution for anybody who has those problems. you may have the dvd-version of GTA V and those files included, are not prepared for mods i guess. read the following threads about that kind of problem, which is pretty easy to solve at all Can't install siren mods GTA automatically updates How to use "mods" folder
Everytime after installing the mod Rockstar patches the game, so the resident.rpf is overwritten. Any ideas how to solve that problem?. btw the newest ASI Loader is already installed