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 @ 11:52
Script: /board/pms.php?sid=1e85534505ced182ed16a7e300ba82b9&action=newpm
Referer: