I got it fixed by starting as administrator. The thing was that regular users were persmission denied, so the mods couldn't make changes in the system. As an administrator it worked

I've just downloaded simple zombies mod but it isn't working. I followed along with a video and everything seemed to be fine, no irregularities in any files. When I start up the game and press f4 the native trainer does work. But when I want to press f10 for the simple zombie menu, nothing shows up.