Notice: Trying to get property of non-object  in /var/www/dezak/app/code/core/Mage/Core/Model/Config.php on line 1236

#0 /var/www/dezak/app/code/core/Mage/Core/Model/Config.php(1236): mageCoreErrorHandler(8, 'Trying to get p...', '/var/www/dezak/...', 1236, Array)
#1 /var/www/dezak/app/code/core/Mage/Core/Model/Config.php(1337): Mage_Core_Model_Config->getGroupedClassName('model', 'core/cache')
#2 /var/www/dezak/app/code/core/Mage/Core/Model/Config.php(1354): Mage_Core_Model_Config->getModelClassName('core/cache')
#3 /var/www/dezak/app/Mage.php(466): Mage_Core_Model_Config->getModelInstance('core/cache', Array)
#4 /var/www/dezak/app/code/core/Mage/Core/Model/App.php(412): Mage::getModel('core/cache', Array)
#5 /var/www/dezak/app/code/core/Mage/Core/Model/App.php(306): Mage_Core_Model_App->_initCache(Array)
#6 /var/www/dezak/app/code/core/Mage/Core/Model/App.php(348): Mage_Core_Model_App->baseInit(Array)
#7 /var/www/dezak/app/Mage.php(687): Mage_Core_Model_App->run(Array)
#8 /var/www/dezak/index.php(83): Mage::run('', 'store')
#9 {main}