Notice: Undefined index: accessToken  in /var/www/magento/src/htdocs/app/code/local/Kawa/Atlas/Model/Tracking/Observer.php on line 36

#0 /var/www/magento/src/htdocs/app/code/local/Kawa/Atlas/Model/Tracking/Observer.php(36): mageCoreErrorHandler(8, 'Undefined index...', '/var/www/magent...', 36, Array)
#1 /var/www/magento/src/htdocs/app/code/core/Mage/Core/Model/App.php(1358): Kawa_Atlas_Model_Tracking_Observer->registerTrackingParams(Object(Varien_Event_Observer))
#2 /var/www/magento/src/htdocs/app/code/core/Mage/Core/Model/App.php(1337): Mage_Core_Model_App->_callObserverMethod(Object(Kawa_Atlas_Model_Tracking_Observer), 'registerTrackin...', Object(Varien_Event_Observer))
#3 /var/www/magento/src/htdocs/app/Mage.php(451): Mage_Core_Model_App->dispatchEvent('controller_acti...', Array)
#4 /var/www/magento/src/htdocs/app/code/core/Mage/Core/Controller/Varien/Action.php(527): Mage::dispatchEvent('controller_acti...', Array)
#5 /var/www/magento/src/htdocs/app/code/core/Mage/Core/Controller/Front/Action.php(69): Mage_Core_Controller_Varien_Action->preDispatch()
#6 /var/www/magento/src/htdocs/app/code/core/Mage/Core/Controller/Varien/Action.php(407): Mage_Core_Controller_Front_Action->preDispatch()
#7 /var/www/magento/src/htdocs/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(254): Mage_Core_Controller_Varien_Action->dispatch('view')
#8 /var/www/magento/src/htdocs/app/code/core/Mage/Core/Controller/Varien/Front.php(172): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#9 /var/www/magento/src/htdocs/app/code/core/Mage/Core/Model/App.php(365): Mage_Core_Controller_Varien_Front->dispatch()
#10 /var/www/magento/src/htdocs/app/Mage.php(686): Mage_Core_Model_App->run(Array)
#11 /var/www/magento/src/htdocs/index.php(88): Mage::run('messen_de', 'store')
#12 {main}