PHP Fatal error:  Uncaught exception 'Mage_Core_Model_Store_Exception' in /var/www/bluebird/app/code/core/Mage/Core/Model/App.php:1377
Stack trace:
#0 /var/www/bluebird/app/code/core/Mage/Core/Model/App.php(848): Mage_Core_Model_App->throwStoreException()
#1 /var/www/bluebird/app/Mage.php(366): Mage_Core_Model_App->getStore(NULL)
#2 /var/www/bluebird/app/code/core/Mage/Log/Helper/Data.php(47): Mage::getStoreConfig('system/log/enab...')
#3 /var/www/bluebird/app/Mage.php(560): Mage_Log_Helper_Data->__construct()
#4 /var/www/bluebird/app/Mage.php(824): Mage::helper('log')
#5 /var/www/bluebird/app/code/core/Mage/Core/functions.php(247): Mage::log('Warning: simple...', 3)
#6 [internal function]: mageCoreErrorHandler(2, 'simplexml_load_...', '/var/www/bluebi...', 510, Array)
#7 /var/www/bluebird/lib/Varien/Simplexml/Config.php(510): simplexml_load_string('../../../vendor...', 'Mage_Core_Model...')
#8 /var/www/bluebird/lib/Varien/Simplexml/Config.php(498): Varien_Simplexml_Config->loadString('../../../vendor...', 'Mage_Core_Model...' in /var/www/bluebird/app/code/core/Mage/Core/Model/App.php on line 1377