My TeamSpeak 3 server is on but it won't let anyone connect

Hello, good evening dear. I have my community that has a TeamSpeak server and from one moment to the next, it does not allow anyone to connect (I clarify, that I do not install the server, I am not the owner). The server marks me on, I have entered the query and it works and I don’t know what to try anymore.

VPS Specifications:

Distributor ID: Debian
Description: Debian GNU/Linux 10 (buster)
Release: 10
Codename: buster

What does it say in the log when you try to connect to the server?
Can you share your log?

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