Displayed during Roblox downtime, after attempting to join a VIP server they cannot join, attempting to join a paid access game that they do not own, attempting to join a LuoBu (Roblox China ...

Should that not work, try exiting the game and reloading. It could be that you’ve had an interruption with your connection to the servers and need to restart the game to reconnect.

How to fix Roblox voice chat not working on Windows. ... Disconnect and reconnect your audio input: If you’re using a wired connection for mic input, it could be that a connection is loose.