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: 20.04.2024 @ 08:49
Script: /board/forgotpw.php?sid=ba0869d04688f0e3dc401ecd19ac61df
Referer: