Cant play on certain servers on FiveM

I recently switched servers on FiveM, and now im having issues with connecting to the servers that run FivePD, for those who dont know what FiveM is, its an extension for GTA5 that allows for multiplayer modding.  I can join any server I want to, but the servers that I try to join that stream FivePD, I cant join for some reason, and some of them crashes FiveM. Any suggestions on how to fix it?