[Fratzi]

When the server passes 100 players, server chats are global...

That means everyone can see any chat messages and I can not find the problem..

https://imgur.com/a/Dnppo2a

[Chyakka]

You may want to include your OnPlayerText callback code, you can't fix a bug with a screenshot.

[Fratzi]

Solved.
The problem was from max_players

[Davidmkd123]

Have you tried to define MAX_PLAYERS to 100?