Nothing moving in any server

I was trying to play BeamMP with a friend, but noone was moving in the server. When I reconnected, they teleported to their current locations but then stopped again.
I tried restarting BeamMP and the game many times. I even reinstalled BeamMP.
No my game is not on pause, I checked.
Yes my internet is good (3 ping, 100mb/s on ookla speedtest)
Yes i was in an official server and everything was working for my friend.
When i spawned in my car, I could move but noone else was moving, I could hit them.
It was almost as if I was in a singleplayer world with other players nametags.
How can i fix this?