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: 25.04.2024 @ 23:29
Script: /board/search.php?sid=66eee5e642f5b39f8adca721e0e5a5d2
Referer: