Database error in vBulletin :

mysql_connect(): Can't connect to MySQL server on 'evonymobbbsmysqlmaster' (104)
/data/product/evonymob/production/bbs/b/includes/class_core.php on line 317

MySQL Error   : 
Error Number  : 
Request Date  : Saturday, December 2nd 2023 @ 09:07:44 PM
Error Date    : Saturday, December 2nd 2023 @ 09:07:51 PM
Script        : http://forum.topgamesinc.com/forumdisplay.php?do=markread&markreadhash=1695841954-ddd97a558de81c6b1506c28b0d3b1dfb3943def2
Referrer      : 
IP Address    : 3.80.4.147
Username      : 
Classname     : vB_Database
MySQL Version :