Fatal error: Uncaught Error: Call to a member function isOn() on bool in /var/www/share/ping-pong-shop.de/htdocs/.modman/CommerceBug/app/code/local/Spinfactoryhaynoldmatthesgbr/Commercebug/Model/Observer.php:56 Stack trace: #0 /var/www/share/ping-pong-shop.de/htdocs/.modman/CommerceBug/app/code/local/Spinfactoryhaynoldmatthesgbr/Commercebug/Model/Observer.php(63): Spinfactoryhaynoldmatthesgbr_Commercebug_Model_Observer->doNotDisplay() #1 /var/www/share/ping-pong-shop.de/htdocs/app/code/core/Mage/Core/Model/App.php(1405): Spinfactoryhaynoldmatthesgbr_Commercebug_Model_Observer->addCommercebugInit(Object(Varien_Event_Observer)) #2 /var/www/share/ping-pong-shop.de/htdocs/app/code/core/Mage/Core/Model/App.php(1383): Mage_Core_Model_App->_callObserverMethod(Object(Spinfactoryhaynoldmatthesgbr_Commercebug_Model_Observer), 'addCommercebugI...', Object(Varien_Event_Observer), 'unique_name') #3 /var/www/share/ping-pong-shop.de/htdocs/app/Mage.php(514): Mage_Core_Model_App->dispatchEvent('http_response_s...', Array) #4 /var/www/sha in /var/www/share/ping-pong-shop.de/htdocs/.modman/CommerceBug/app/code/local/Spinfactoryhaynoldmatthesgbr/Commercebug/Model/Observer.php on line 56