Tijsdieman

Do you mean that I must run normal 1.12.2?

Did, I use in in anather laungage so I didn't know how to spell in in the English. But I posted an screenshots. I downloaded it from the Forge website

Hello guys. A year before forge was working. (I redownloaded Windows) I now get always a fault message. I deleted all the versions and redownloaded forge. And I get this message: the version your trying to play, Has things from other versions. That is weird because I have 0 mods in it. And I even didn't downloaded it. I don't have logs because I can't use it.