Fatal error: Uncaught Error: Call to a member function find() on bool in /var/www/knowgraphics.io/app/code/local/Blackbox/HelpDesk/Helper/Data.php:17 Stack trace: #0 /var/www/knowgraphics.io/app/code/local/Blackbox/HelpDesk/Model/Resource/Ticket/Collection.php(32): Blackbox_HelpDesk_Helper_Data->getZendeskRequesterId() #1 /var/www/knowgraphics.io/app/code/local/Blackbox/HelpDesk/Block/Customer/Ticket/List.php(11): Blackbox_HelpDesk_Model_Resource_Ticket_Collection->addCustomerFilter() #2 /var/www/knowgraphics.io/lib/Varien/Object.php(112): Blackbox_HelpDesk_Block_Customer_Ticket_List->_construct() #3 /var/www/knowgraphics.io/app/code/core/Mage/Core/Block/Abstract.php(202): Varien_Object->__construct() #4 /var/www/knowgraphics.io/app/code/core/Mage/Core/Model/Layout.php(491): Mage_Core_Block_Abstract->__construct() #5 /var/www/knowgraphics.io/app/code/core/Mage/Core/Model/Layout.php(437): Mage_Core_Model_Layout->_getBlockInstance() #6 /var/www/knowgraphics.io/app/code/core/Mage/Core/Model/Layout.php(472): Mage_Core_Model_L in /var/www/knowgraphics.io/app/code/local/Blackbox/HelpDesk/Helper/Data.php on line 17