An exception occured while bootstrapping the application.

SQLSTATE[HY000] [1040] Too many connections
Stack Trace:
#0 /var/www/vhosts/habitatapartments.com/httpdocs/library/Zend/Db/Adapter/Abstract.php(414): Zend_Db_Adapter_Pdo_Abstract->_connect()
#1 /var/www/vhosts/habitatapartments.com/httpdocs/library/Zend/Db/Adapter/Pdo/Abstract.php(220): Zend_Db_Adapter_Abstract->query('SET NAMES 'utf8...', Array)
#2 /var/www/vhosts/habitatapartments.com/httpdocs/application/bootstrap.php(24): Zend_Db_Adapter_Pdo_Abstract->query('SET NAMES 'utf8...')
#3 /var/www/vhosts/habitatapartments.com/httpdocs/index.php(35): require('/var/www/vhosts...')
#4 {main}