Yeah it is working now after doing a clean reinstall of rdr. There was a weird tutorial the first time I installed mods that said it should beep at startup.
I think the problem was that i had 2 asi file loaders installed
edit: Thanks for your help
Tried the things listed above but my game still crashes after the loader beeps. The Issue could also be caused by residues from other loaders as I am not sure if I deleted all of them. Here's my mod list.