Can not connect to servers

[Asiimate]

Hello there,
I installed the RageMP for GTA V today and I ran into some problems. When trying to connect to a server, my game starts, downloads the server files and then theres 2 different things that happen:
Case1: My screen goes black and the game crashes. Also an error message pops up saying "JS Startup Error #10"
Case2: I get teleported in front of the observatorium, my character goes invisible and a message saying "connection closed" appears on the left-hand side of the game.

I already tried reinstalling the program aswell as restarting my pc, but nothing seemed to work. Hopefully someone knows, how to fix this problem and can help me figure this out as soon as possible.

Cheerioh, Asiimate