SQL-DATABASE ERROR

Database error in WoltLab Burning Board: Link-ID == false, connect failed
mysql error: Too many connections
mysql error number: 1040
Date: 17.05.2024 @ 23:32
Script: /wbblite/usercp.php?action=addsubscription&threadid=1495&sid=be0e1bd05f7eecc2669cd4b87eff3a67
Referer: