I run OC 18.104.22.168 with Journal2 theme.
I have "Error Undefined" when trying to add products to cart. It happens only with secondary stores (subdomains) not in the mainstore (which is going to be empty in my case)
Already tried all the chances found in the forum, without success.
Hope somebody could help me
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.
Opencart.com Administrator / Quality Assurance Analyst / Programmer