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: 29.03.2024 @ 12:10
Script: /board/addreply.php?threadid=951&sid=1119a7a30c8367f213dbb048f2470c4e
Referer: