SQL-DATABASE ERROR

Database error in WoltLab Burning Board: Link-ID == false, connect failed
mysql error: The server requested authentication method unknown to the client
mysql error number: 2054
Date: 28.03.2024 @ 13:06
Script: /board/markread.php?sid=a3cc3a408ead9e2026921f84a637e74c
Referer: