SQL-DATABASE ERROR

Database error in WoltLab Burning Board: Link-ID == false, connect failed
mysql error: Too many connections
mysql error number: 1040
Date: 25.05.2024 @ 10:00
Script: /usercp.php?action=addsubscription&threadid=6314&sid=0659b0d2c0b343b89419da7574d2800b
Referer: