Notice: Trying to get property of non-object  in /var/www/vhosts/www.laborlawcenter.com/app/Mage.php on line 769

#0 /var/www/vhosts/www.laborlawcenter.com/app/Mage.php(769): mageCoreErrorHandler(8, 'Trying to get p...', '/var/www/vhosts...', 769, Array)
#1 /var/www/vhosts/www.laborlawcenter.com/app/code/core/Mage/Core/Model/Config.php(293): Mage::isInstalled(Array)
#2 /var/www/vhosts/www.laborlawcenter.com/app/code/core/Mage/Core/Model/App.php(413): Mage_Core_Model_Config->loadModulesCache()
#3 /var/www/vhosts/www.laborlawcenter.com/app/code/core/Mage/Core/Model/App.php(343): Mage_Core_Model_App->_initModules()
#4 /var/www/vhosts/www.laborlawcenter.com/app/Mage.php(684): Mage_Core_Model_App->run(Array)
#5 /var/www/vhosts/www.laborlawcenter.com/index.php(88): Mage::run('', 'store')
#6 {main}