56 minutes ago, Tyjaylin said:

Try lunching GTA normally without rage while your mods folder is names "mods" and see what happens.

 

Try going into the rage settings and clicking on the plugins tab and selecting load these plugins on startup and once you’ve done that check every plugin except lspdfr and see if your RPH will lunch.

I made a wild guess that maybe it was just the specific car pack I had downloaded. I downloaded a fresh one, everything is working perfectly. I'd like to thank you both for your effort in helping me resolve these issues!

No problem