SQL-DATABASE ERROR

Database error in WoltLab Burning Board (): Link-ID == false, connect failed
mysql error: Too many connections
mysql error number: 1040
mysql version: unknown
php version: 5.3.2-1ubuntu4.28
Date: 25.08.2016 @ 06:20
Script: /lifestyle/movies/unknown-identity-unknown_t13486/
Referer: