SQLSTATE[08004] [1040] Too many connections

#0 /srv/www/industrieklettershop.de/versions/shop_v2/src/lib/Zend/Db/Adapter/Pdo/Mysql.php(96): Zend_Db_Adapter_Pdo_Abstract->_connect()
#1 /srv/www/industrieklettershop.de/versions/shop_v2/src/lib/Varien/Db/Adapter/Pdo/Mysql.php(313): Zend_Db_Adapter_Pdo_Mysql->_connect()
#2 /srv/www/industrieklettershop.de/versions/shop_v2/src/lib/Zend/Db/Adapter/Abstract.php(459): Varien_Db_Adapter_Pdo_Mysql->_connect()
#3 /srv/www/industrieklettershop.de/versions/shop_v2/src/lib/Zend/Db/Adapter/Pdo/Abstract.php(238): Zend_Db_Adapter_Abstract->query('SET NAMES utf8', Array)
#4 /srv/www/industrieklettershop.de/versions/shop_v2/src/lib/Varien/Db/Adapter/Pdo/Mysql.php(419): Zend_Db_Adapter_Pdo_Abstract->query('SET NAMES utf8', Array)
#5 /srv/www/industrieklettershop.de/versions/shop_v2/src/app/code/core/Mage/Core/Model/Resource.php(169): Varien_Db_Adapter_Pdo_Mysql->query('SET NAMES utf8')
#6 /srv/www/industrieklettershop.de/versions/shop_v2/src/app/code/core/Mage/Core/Model/Resource.php(110): Mage_Core_Model_Resource->_newConnection('pdo_mysql', Object(Mage_Core_Model_Config_Element))
#7 /srv/www/industrieklettershop.de/versions/shop_v2/src/app/code/core/Mage/Core/Model/Resource.php(296): Mage_Core_Model_Resource->getConnection('core_read')
#8 /srv/www/industrieklettershop.de/versions/shop_v2/src/app/code/core/Mage/Core/Model/Cache.php(234): Mage_Core_Model_Resource->getTableName('core/cache')
#9 /srv/www/industrieklettershop.de/versions/shop_v2/src/app/code/core/Mage/Core/Model/Cache.php(273): Mage_Core_Model_Cache->getDbAdapterOptions()
#10 /srv/www/industrieklettershop.de/versions/shop_v2/src/app/code/core/Mage/Core/Model/Cache.php(221): Mage_Core_Model_Cache->_getTwoLevelsBackendOptions(Array, Array)
#11 /srv/www/industrieklettershop.de/versions/shop_v2/src/app/code/core/Mage/Core/Model/Cache.php(119): Mage_Core_Model_Cache->_getBackendOptions(Array)
#12 /srv/www/industrieklettershop.de/versions/shop_v2/src/app/code/core/Mage/Core/Model/Config.php(1348): Mage_Core_Model_Cache->__construct(Array)
#13 /srv/www/industrieklettershop.de/versions/shop_v2/src/app/Mage.php(462): Mage_Core_Model_Config->getModelInstance('core/cache', Array)
#14 /srv/www/industrieklettershop.de/versions/shop_v2/src/app/code/core/Mage/Core/Model/App.php(401): Mage::getModel('core/cache', Array)
#15 /srv/www/industrieklettershop.de/versions/shop_v2/src/app/code/core/Mage/Core/Model/App.php(295): Mage_Core_Model_App->_initCache(Array)
#16 /srv/www/industrieklettershop.de/versions/shop_v2/src/app/code/core/Mage/Core/Model/App.php(337): Mage_Core_Model_App->baseInit(Array)
#17 /srv/www/industrieklettershop.de/versions/shop_v2/src/app/Mage.php(683): Mage_Core_Model_App->run(Array)
#18 /srv/www/industrieklettershop.de/versions/shop_v2/src/index.php(87): Mage::run('', 'store')
#19 {main}