Streaming avatar does not work at all

I subscribed to the "Creator Plan", added the "Finetune" subscription, paid for the One-time Streaming Avatar, and tried the Streaming Avatar, but it never works, giving me "reach user session limit" and "daily rate limit exceeded" errors, and it does not work at all. I have never been able to confirm that the streaming avatar works.

It does not work with Joshua's demo streaming avatar, nor with my own streaming avatar. It does not work in different browsers.

I understand that this is a beta version, but I have paid a lot of money so far and would like to see this resolved ASAP.