so how can I fix this... it happened to me for categories and unsure how to fix
https://www.pomeroyandcompany.com/robot-vacuum-cleaner-battery-parts-accessories/irobot-battery-parts-acce...t-battery-pack
gives error:
ERROR: "Includes\ErrorHandler::FATAL_ERROR" (code 2)
Call to a member function display() on a non-object