SQLSTATE[HY000] [2002] Connection refused

#0 /home/racut/domains/app/racut/app/vendor/firegento/magento/lib/Zend/Db/Adapter/Pdo/Mysql.php(111): Zend_Db_Adapter_Pdo_Abstract->_connect()
#1 /home/racut/domains/app/racut/app/vendor/firegento/magento/lib/Varien/Db/Adapter/Pdo/Mysql.php(396): Zend_Db_Adapter_Pdo_Mysql->_connect()
#2 /home/racut/domains/app/racut/app/vendor/firegento/magento/lib/Zend/Db/Adapter/Abstract.php(460): Varien_Db_Adapter_Pdo_Mysql->_connect()
#3 /home/racut/domains/app/racut/app/vendor/firegento/magento/lib/Zend/Db/Adapter/Pdo/Abstract.php(238): Zend_Db_Adapter_Abstract->query()
#4 /home/racut/domains/app/racut/app/vendor/firegento/magento/lib/Varien/Db/Adapter/Pdo/Mysql.php(504): Zend_Db_Adapter_Pdo_Abstract->query()
#5 /home/racut/domains/app/racut/app/vendor/firegento/magento/app/code/core/Mage/Core/Model/Resource.php(179): Varien_Db_Adapter_Pdo_Mysql->query()
#6 /home/racut/domains/app/racut/app/vendor/firegento/magento/app/code/core/Mage/Core/Model/Resource.php(110): Mage_Core_Model_Resource->_newConnection()
#7 /home/racut/domains/app/racut/app/vendor/firegento/magento/app/code/core/Mage/Core/Model/Resource/Setup.php(141): Mage_Core_Model_Resource->getConnection()
#8 /home/racut/domains/app/racut/app/vendor/firegento/magento/app/code/core/Mage/Core/Model/Resource/Setup.php(234): Mage_Core_Model_Resource_Setup->__construct()
#9 /home/racut/domains/app/racut/app/vendor/firegento/magento/app/code/core/Mage/Core/Model/App.php(428): Mage_Core_Model_Resource_Setup::applyAllUpdates()
#10 /home/racut/domains/app/racut/app/vendor/firegento/magento/app/code/core/Mage/Core/Model/App.php(354): Mage_Core_Model_App->_initModules()
#11 /home/racut/domains/app/racut/app/vendor/firegento/magento/app/Mage.php(683): Mage_Core_Model_App->run()
#12 /home/racut/domains/app/racut/app/code/modules/MateuszMesek_ModuleLoader/init/run.php(15): Mage::run()
#13 /home/racut/domains/app/racut/app/public/index.php(30): require('/home/racut/dom...')
#14 {main}