Warning: mysql_connect(): Too many connections in /home/web/web/museum/classes/DB/Mysql.php on line 7

Fatal error: Uncaught exception 'AppException' with message 'Can Not Connect to default' in /home/web/web/museum/classes/App.php:174
Stack trace:
#0 /home/web/web/museum/classes/DB.php(34): App::error('Can Not Connect...')
#1 /home/web/web/museum/classes/DB.php(58): DB->open()
#2 /home/web/web/museum/classes/Service.php(53): DB->query('SELECT * FROM s...')
#3 /home/web/web/museum/classes/Service.php(48): Service->rowBySql('SELECT * FROM s...', 1)
#4 /home/web/web/museum/apps/cms/SiteService.php(31): Service->row('*', Array)
#5 /home/web/web/museum/classes/Controller/Site.php(15): cms_SiteService->getSite('site')
#6 /home/web/web/museum/classes/Controller.php(28): Controller_Site->onInit()
#7 /home/web/web/museum/classes/App.php(82): Controller->init('site')
#8 /home/web/web/museum/classes/App.php(116): App->_getController('site', 'Index')
#9 /home/web/web/museum/index.php(17): App->loadController()
#10 {main}
  thrown in /home/web/web/museum/classes/App.php on line 174