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 @ 06:57
Script: /board/memberslist.php?sid=71275c4ea51974c8a2e6ad81b361bba2
Referer: