The game chat belongs to the server part of the game. If the chat does not work only for you, it means you have an unstable Internet connection.

Please follow these recommendations:
1. Make sure you are connected to the network and the connection is stable. Sometimes networks get overloaded so the connection can be unstable no matter what the indicator says.
2. If you are using mobile internet, try switching to Wi-Fi and vice versa.
3. You can also try restarting your device and/or router.
4. Try using a VPN application that changes your IP address to dynamic e.g. TunnnelBear
5. If you already use VPN, turn it off.