Is it a mod compatibility issue?

Yes

If it's a mod compatibility issue, please provide the link(s) to the incompatible mod(s)

https://www.curseforge.com/minecraft/mc-mods/simple-voice-chat

Minecraft version

1.20.1

Describe the issue

It makes it so u cabt talk at all becayse it keeps trying to connect to the server but fails and disconnects ur voice chat client but still lets you play the game