SQLSTATE[08004] [1040] Too many connections

#0 /home/iosseiom/shop/lib/Zend/Db/Adapter/Pdo/Mysql.php(96): Zend_Db_Adapter_Pdo_Abstract->_connect()
#1 /home/iosseiom/shop/lib/Varien/Db/Adapter/Pdo/Mysql.php(251): Zend_Db_Adapter_Pdo_Mysql->_connect()
#2 /home/iosseiom/shop/lib/Zend/Db/Adapter/Abstract.php(459): Varien_Db_Adapter_Pdo_Mysql->_connect()
#3 /home/iosseiom/shop/lib/Zend/Db/Adapter/Pdo/Abstract.php(238): Zend_Db_Adapter_Abstract->query('SET NAMES utf8', Array)
#4 /home/iosseiom/shop/lib/Varien/Db/Adapter/Pdo/Mysql.php(333): Zend_Db_Adapter_Pdo_Abstract->query('SET NAMES utf8', Array)
#5 /home/iosseiom/shop/app/code/core/Mage/Core/Model/Resource/Type/Db/Pdo/Mysql.php(45): Varien_Db_Adapter_Pdo_Mysql->query('SET NAMES utf8')
#6 /home/iosseiom/shop/app/code/core/Mage/Core/Model/Resource.php(93): Mage_Core_Model_Resource_Type_Db_Pdo_Mysql->getConnection(Object(Mage_Core_Model_Config_Element))
#7 /home/iosseiom/shop/app/code/core/Mage/Core/Model/Mysql4/Abstract.php(297): Mage_Core_Model_Resource->getConnection('core_read')
#8 /home/iosseiom/shop/app/code/core/Mage/Core/Model/Mysql4/Abstract.php(312): Mage_Core_Model_Mysql4_Abstract->_getConnection('read')
#9 /home/iosseiom/shop/app/code/core/Mage/Core/Model/Mysql4/Abstract.php(332): Mage_Core_Model_Mysql4_Abstract->_getReadAdapter()
#10 /home/iosseiom/shop/app/code/core/Mage/Core/Model/Mysql4/Collection/Abstract.php(118): Mage_Core_Model_Mysql4_Abstract->getReadConnection()
#11 /home/iosseiom/shop/app/code/core/Mage/Core/Model/Config.php(1254): Mage_Core_Model_Mysql4_Collection_Abstract->__construct(Object(Mage_Core_Model_Mysql4_Website))
#12 /home/iosseiom/shop/app/code/core/Mage/Core/Model/Config.php(1287): Mage_Core_Model_Config->getModelInstance('core_mysql4/web...', Object(Mage_Core_Model_Mysql4_Website))
#13 /home/iosseiom/shop/app/Mage.php(460): Mage_Core_Model_Config->getResourceModelInstance('core/website_co...', Object(Mage_Core_Model_Mysql4_Website))
#14 /home/iosseiom/shop/app/code/core/Mage/Core/Model/Abstract.php(208): Mage::getResourceModel('core/website_co...', Object(Mage_Core_Model_Mysql4_Website))
#15 /home/iosseiom/shop/app/code/core/Mage/Core/Model/Abstract.php(213): Mage_Core_Model_Abstract->getResourceCollection()
#16 /home/iosseiom/shop/app/code/core/Mage/Core/Model/App.php(569): Mage_Core_Model_Abstract->getCollection()
#17 /home/iosseiom/shop/app/code/core/Mage/Core/Model/App.php(429): Mage_Core_Model_App->_initStores()
#18 /home/iosseiom/shop/app/code/core/Mage/Core/Model/App.php(335): Mage_Core_Model_App->_initCurrentStore('', 'store')
#19 /home/iosseiom/shop/app/Mage.php(627): Mage_Core_Model_App->run(Array)
#20 /home/iosseiom/shop/index.php(82): Mage::run('', 'store')
#21 {main}