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 @ 09:38
Script: /board/search.php?action=user&userid=50&sid=1119a7a30c8367f213dbb048f2470c4e
Referer: