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: 03.07.2024 @ 00:03
Script: /wbb2/index.php/images/smilies/1_standard/portalboxen/sbox_img/banner/js/board.php?boardid=111%3Fsid%3Df5e9cd991a77ed75aa9352ab0d583f47
Referer: