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: 26.04.2024 @ 12:55
Script: /board/search.php?action=user&userid=8&sid=cc84db85c86a04592fa894c87f8432ca
Referer: