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 @ 18:19
Script: /board/search.php?action=user&userid=54&sid=52150fa5bbf692a488a340bd398646a6
Referer: