Client is trying to setup promotions via the admin but when saving and applying the promotion the server logs the following error (admin return blank screen):
PHP Fatal error: Call to a member function getBackend() on a non-object in /app/code/core/Mage/Catalog/Model/Resource/Product/Collection.php on line 855
Unable to find any info regarding this type of error, what may be causing it, or how to correct it.
Thanks for your help!
Mage_Catalog_Model_Resource_Product_Collection::getAllAttributeValuesis called. Can you provide a backtrace for this error? Fatal errors should record a complete backtrace in the PHP error log along with the error message.