An exception occured while bootstrapping the application.

Too many connections
Stack Trace:
#0 /var/www/library/subdomainsV3_3/Zend/Db/Adapter/Mysqli.php(317): mysqli_real_connect()
#1 /var/www/library/subdomainsV3_3/Zend/Db/Adapter/Abstract.php(414): Zend_Db_Adapter_Mysqli->_connect()
#2 /var/www/10671/buecher-wurm.info/framework/application/bootstrap.php(245): Zend_Db_Adapter_Abstract->query()
#3 /var/www/10671/buecher-wurm.info/htdocs/index.php(31): require('...')
#4 {main}