Contact the extension developer from where you originally downloaded the extension. Normally, instructions inside the downloaded package should be provided for this. Ensure to have activated the page and access permission from your admin - > systems - > users - > user groups page. If this still does not resolve the issue, contact the extension developer.
The most generated errors being found on Opencart forum originates from contributed programming. The increased post counters are caused by redundancies of the same solutions that were already provided prior.
Programmer / Opencart Tester