SQL-DATABASE ERROR

Database error in (): Link-ID == false, connect failed
mysql error:
mysql error number:
mysql version: unknown
php version: 7.4.33-nmm5
Date: 25.07.2024 @ 03:34
Script: /wbb2/index.php/banner/images/js/board.php?boardid=111%3Fsid%3Dcd5f906abfb4320458360eb1e549a9d0
Referer: