Magento admin giving 500 error - nothing in logs

Question

My Magento-admin stopped working after I tried to install a extension. Now I get a 500 error when I try to access the /admin. Strange thing is that nothing shows up in the error_log. Developer mode log:

Notice: Undefined index: httponly in /var/www/vhosts/mydomain.com/httpdocs/includes/src/__default.php on line 7349

#0 /var/www/vhosts/mydomain.com/httpdocs/includes/src/__default.php(7349): mageCoreErrorHandler(8, 'Undefined index...', '/var/www/vhosts...', 7349, Array) #1 /var/www/vhosts/mydomain.com/httpdocs/includes/src/__default.php(7421): Mage_Core_Model_Session_Abstract_Varien->start('adminhtml') #2 /var/www/vhosts/mydomain.com/httpdocs/includes/src/__default.php(7777): Mage_Core_Model_Session_Abstract_Varien->init('core', 'adminhtml') #3 /var/www/vhosts/mydomain.com/httpdocs/includes/src/__default.php(33479): Mage_Core_Model_Session_Abstract->init('core', 'adminhtml') #4 /var/www/vhosts/mydomain.com/httpdocs/includes/src/__default.php(23438): Mage_Core_Model_Session->__construct(Array) #5 /var/www/vhosts/mydomain.com/httpdocs/app/Mage.php(462): Mage_Core_Model_Config->getModelInstance('core/session', Array) #6 /var/www/vhosts/mydomain.com/httpdocs/app/Mage.php(476): Mage::getModel('core/session', Array) #7 /var/www/vhosts/mydomain.com/httpdocs/includes/src/__default.php(13658): Mage::getSingleton('core/session', Array) #8 /var/www/vhosts/mydomain.com/httpdocs/includes/src/Mage_Adminhtml_Controller_Action.php(160): Mage_Core_Controller_Varien_Action->preDispatch() #9 /var/www/vhosts/mydomain.com/httpdocs/includes/src/__default.php(13572): Mage_Adminhtml_Controller_Action->preDispatch() #10 /var/www/vhosts/mydomain.com/httpdocs/includes/src/__default.php(17928): Mage_Core_Controller_Varien_Action->dispatch('index') #11 /var/www/vhosts/mydomain.com/httpdocs/includes/src/__default.php(17485): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http)) #12 /var/www/vhosts/mydomain.com/httpdocs/includes/src/__default.php(20062): Mage_Core_Controller_Varien_Front->dispatch() #13 /var/www/vhosts/mydomain.com/httpdocs/app/Mage.php(683): Mage_Core_Model_App->run(Array) #14 /var/www/vhosts/mydomain.com/httpdocs/index.php(94): Mage::run('', 'store') #15 {main}

Already tried uninstalling the extension, no luck. What should I do to find the cause of the error?

you should publish your default.php on line 7349 code to get more helpful comments. — Ahmet ATAK
The error you show is only notice . please dig on your server log may help . Example apache errorlog for your vhost or MySQL error log. 500 also could be your .htaccess problem too . the plugin may change it or require some mod in apache to be open — zt1983811
The frontend of the shop is working fine. Can it still be a htaccess problem? — klaaskox
vhost error_log doesn't show any error, same thing with /var/log/httpd/error_log — klaaskox

Mistery Mistery · Accepted Answer · 2015-12-12T15:44:05

Please, firstly disable compilation, use this:

php -f your_project_folder/shell/compiler.php clear php -f your_project_folder/shell/compiler.php disable

Then clear cache var/cache. You can just remove this folder.

Magento admin giving 500 error - nothing in logs

1 Answers