Omeka has encountered an error

Zend_Db_Adapter_Exception

SQLSTATE[HY000] [2002] Connection refused

PDOException: SQLSTATE[HY000] [2002] Connection refused in /sites/mauriaconline/www/web_main/application/libraries/Zend/Db/Adapter/Pdo/Abstract.php:128
Stack trace:
#0 /sites/mauriaconline/www/web_main/application/libraries/Zend/Db/Adapter/Pdo/Abstract.php(128): PDO->__construct()
#1 /sites/mauriaconline/www/web_main/application/libraries/Zend/Db/Adapter/Pdo/Mysql.php(111): Zend_Db_Adapter_Pdo_Abstract->_connect()
#2 /sites/mauriaconline/www/web_main/application/libraries/Zend/Db/Adapter/Pdo/Abstract.php(386): Zend_Db_Adapter_Pdo_Mysql->_connect()
#3 /sites/mauriaconline/www/web_main/application/libraries/Omeka/Db.php(322): Zend_Db_Adapter_Pdo_Abstract->getServerVersion()
#4 /sites/mauriaconline/www/web_main/application/libraries/Omeka/Db.php(56): Omeka_Db->_getInitCommand()
#5 /sites/mauriaconline/www/web_main/application/libraries/Omeka/Application/Resource/Db.php(66): Omeka_Db->__construct()
#6 /sites/mauriaconline/www/web_main/application/libraries/Zend/Application/Bootstrap/BootstrapAbstract.php(695): Omeka_Application_Resource_Db->init()
#7 /sites/mauriaconline/www/web_main/application/libraries/Zend/Application/Bootstrap/BootstrapAbstract.php(641): Zend_Application_Bootstrap_BootstrapAbstract->_executeResource()
#8 /sites/mauriaconline/www/web_main/application/libraries/Zend/Application/Bootstrap/BootstrapAbstract.php(598): Zend_Application_Bootstrap_BootstrapAbstract->_bootstrap()
#9 /sites/mauriaconline/www/web_main/application/libraries/Omeka/Application/Resource/Pluginbroker.php(22): Zend_Application_Bootstrap_BootstrapAbstract->bootstrap()
#10 /sites/mauriaconline/www/web_main/application/libraries/Zend/Application/Bootstrap/BootstrapAbstract.php(695): Omeka_Application_Resource_Pluginbroker->init()
#11 /sites/mauriaconline/www/web_main/application/libraries/Zend/Application/Bootstrap/BootstrapAbstract.php(641): Zend_Application_Bootstrap_BootstrapAbstract->_executeResource()
#12 /sites/mauriaconline/www/web_main/application/libraries/Zend/Application/Bootstrap/BootstrapAbstract.php(598): Zend_Application_Bootstrap_BootstrapAbstract->_bootstrap()
#13 /sites/mauriaconline/www/web_main/application/libraries/Omeka/Application/Resource/Frontcontroller.php(59): Zend_Application_Bootstrap_BootstrapAbstract->bootstrap()
#14 /sites/mauriaconline/www/web_main/application/libraries/Zend/Application/Bootstrap/BootstrapAbstract.php(695): Omeka_Application_Resource_Frontcontroller->init()
#15 /sites/mauriaconline/www/web_main/application/libraries/Zend/Application/Bootstrap/BootstrapAbstract.php(638): Zend_Application_Bootstrap_BootstrapAbstract->_executeResource()
#16 /sites/mauriaconline/www/web_main/application/libraries/Zend/Application/Bootstrap/BootstrapAbstract.php(598): Zend_Application_Bootstrap_BootstrapAbstract->_bootstrap()
#17 /sites/mauriaconline/www/web_main/application/libraries/Zend/Application.php(373): Zend_Application_Bootstrap_BootstrapAbstract->bootstrap()
#18 /sites/mauriaconline/www/web_main/application/libraries/Omeka/Application.php(49): Zend_Application->bootstrap()
#19 /sites/mauriaconline/www/web_main/index.php(23): Omeka_Application->initialize()
#20 {main}

Next Zend_Db_Adapter_Exception: SQLSTATE[HY000] [2002] Connection refused in /sites/mauriaconline/www/web_main/application/libraries/Zend/Db/Adapter/Pdo/Abstract.php:144
Stack trace:
#0 /sites/mauriaconline/www/web_main/application/libraries/Zend/Db/Adapter/Pdo/Mysql.php(111): Zend_Db_Adapter_Pdo_Abstract->_connect()
#1 /sites/mauriaconline/www/web_main/application/libraries/Zend/Db/Adapter/Pdo/Abstract.php(386): Zend_Db_Adapter_Pdo_Mysql->_connect()
#2 /sites/mauriaconline/www/web_main/application/libraries/Omeka/Db.php(322): Zend_Db_Adapter_Pdo_Abstract->getServerVersion()
#3 /sites/mauriaconline/www/web_main/application/libraries/Omeka/Db.php(56): Omeka_Db->_getInitCommand()
#4 /sites/mauriaconline/www/web_main/application/libraries/Omeka/Application/Resource/Db.php(66): Omeka_Db->__construct()
#5 /sites/mauriaconline/www/web_main/application/libraries/Zend/Application/Bootstrap/BootstrapAbstract.php(695): Omeka_Application_Resource_Db->init()
#6 /sites/mauriaconline/www/web_main/application/libraries/Zend/Application/Bootstrap/BootstrapAbstract.php(641): Zend_Application_Bootstrap_BootstrapAbstract->_executeResource()
#7 /sites/mauriaconline/www/web_main/application/libraries/Zend/Application/Bootstrap/BootstrapAbstract.php(598): Zend_Application_Bootstrap_BootstrapAbstract->_bootstrap()
#8 /sites/mauriaconline/www/web_main/application/libraries/Omeka/Application/Resource/Pluginbroker.php(22): Zend_Application_Bootstrap_BootstrapAbstract->bootstrap()
#9 /sites/mauriaconline/www/web_main/application/libraries/Zend/Application/Bootstrap/BootstrapAbstract.php(695): Omeka_Application_Resource_Pluginbroker->init()
#10 /sites/mauriaconline/www/web_main/application/libraries/Zend/Application/Bootstrap/BootstrapAbstract.php(641): Zend_Application_Bootstrap_BootstrapAbstract->_executeResource()
#11 /sites/mauriaconline/www/web_main/application/libraries/Zend/Application/Bootstrap/BootstrapAbstract.php(598): Zend_Application_Bootstrap_BootstrapAbstract->_bootstrap()
#12 /sites/mauriaconline/www/web_main/application/libraries/Omeka/Application/Resource/Frontcontroller.php(59): Zend_Application_Bootstrap_BootstrapAbstract->bootstrap()
#13 /sites/mauriaconline/www/web_main/application/libraries/Zend/Application/Bootstrap/BootstrapAbstract.php(695): Omeka_Application_Resource_Frontcontroller->init()
#14 /sites/mauriaconline/www/web_main/application/libraries/Zend/Application/Bootstrap/BootstrapAbstract.php(638): Zend_Application_Bootstrap_BootstrapAbstract->_executeResource()
#15 /sites/mauriaconline/www/web_main/application/libraries/Zend/Application/Bootstrap/BootstrapAbstract.php(598): Zend_Application_Bootstrap_BootstrapAbstract->_bootstrap()
#16 /sites/mauriaconline/www/web_main/application/libraries/Zend/Application.php(373): Zend_Application_Bootstrap_BootstrapAbstract->bootstrap()
#17 /sites/mauriaconline/www/web_main/application/libraries/Omeka/Application.php(49): Zend_Application->bootstrap()
#18 /sites/mauriaconline/www/web_main/index.php(23): Omeka_Application->initialize()
#19 {main}