I'm very much a noob, but I tried to set up a multi language store. But after adding a new store view and configuring this in "System > Configuration > General and set the locale all of a sudden I got error messages.
I cleared the cache manually and deleted the folders cache and sessions. None of it helped. Before it connected to the database without problems, so I am not sure what exactly happened.
Here is the error log from the var folder
a:4:{i:0;s:98:"SQLSTATE[28000] [1045] Access denied for user 'tuurismo_ssnie24'@'localhost' (using password: YES)";i:1;s:2493:" #0 /home3/tuurismo/public_html/lib/Zend/Db/Adapter/Pdo/Mysql.php(111): Zend_Db_Adapter_Pdo_Abstract->_connect() #1 /home3/tuurismo/public_html/lib/Varien/Db/Adapter/Pdo/Mysql.php(320): Zend_Db_Adapter_Pdo_Mysql->_connect() #2 /home3/tuurismo/public_html/lib/Zend/Db/Adapter/Abstract.php(460): Varien_Db_Adapter_Pdo_Mysql->_connect() #3 /home3/tuurismo/public_html/lib/Zend/Db/Adapter/Pdo/Abstract.php(238): Zend_Db_Adapter_Abstract->query('SET NAMES utf8', Array) #4 /home3/tuurismo/public_html/lib/Varien/Db/Adapter/Pdo/Mysql.php(428): Zend_Db_Adapter_Pdo_Abstract->query('SET NAMES utf8', Array) #5 /home3/tuurismo/public_html/app/code/core/Mage/Core/Model/Resource.php(179): Varien_Db_Adapter_Pdo_Mysql->query('SET NAMES utf8') #6 /home3/tuurismo/public_html/app/code/core/Mage/Core/Model/Resource.php(110): Mage_Core_Model_Resource->_newConnection('pdo_mysql', Object(Mage_Core_Model_Config_Element)) #7 /home3/tuurismo/public_html/app/code/core/Mage/Core/Model/Resource/Db/Abstract.php(320): Mage_Core_Model_Resource->getConnection('core_write') #8 /home3/tuurismo/public_html/app/code/core/Mage/Core/Model/Resource/Db/Abstract.php(350): Mage_Core_Model_Resource_Db_Abstract->_getConnection('write') #9 /home3/tuurismo/public_html/app/code/core/Mage/Core/Model/Resource/Db/Abstract.php(335): Mage_Core_Model_Resource_Db_Abstract->_getWriteAdapter() #10 /home3/tuurismo/public_html/app/code/core/Mage/Core/Model/Resource/Cache.php(53): Mage_Core_Model_Resource_Db_Abstract->_getReadAdapter() #11 /home3/tuurismo/public_html/app/code/core/Mage/Core/Model/Cache.php(478): Mage_Core_Model_Resource_Cache->getAllOptions() #12 /home3/tuurismo/public_html/app/code/core/Mage/Core/Model/Cache.php(520): Mage_Core_Model_Cache->_initOptions() #13 /home3/tuurismo/public_html/app/code/core/Mage/Core/Model/App.php(1183): Mage_Core_Model_Cache->canUse('config') #14 /home3/tuurismo/public_html/app/code/core/Mage/Core/Model/Config.php(414): Mage_Core_Model_App->useCache('config') #15 /home3/tuurismo/public_html/app/code/core/Mage/Core/Model/Config.php(294): Mage_Core_Model_Config->_canUseCacheForInit() #16 /home3/tuurismo/public_html/app/code/core/Mage/Core/Model/App.php(413): Mage_Core_Model_Config->loadModulesCache() #17 /home3/tuurismo/public_html/app/code/core/Mage/Core/Model/App.php(343): Mage_Core_Model_App->_initModules() #18 /home3/tuurismo/public_html/app/Mage.php(684): Mage_Core_Model_App->run(Array) #19 /home3/tuurismo/public_html/index.php(89): Mage::run('', 'store') #20 {main}";s:3:"url";s:67:"/index.php/admin/process/list/key/0d440f28e038068bfc5b3748813a7e49/";s:11:"script_name";s:10:"/index.php";}