Why is the classifieds page showing "not found error"

Hello, installed classifieds plugin and setup as per instructions. When view "classifieds" page get Not Found

"Apologies, but no results were found for the requested classifieds. Perhaps searching will help find a related classified."

As i understand this page is autogenerated.
Also, after buying credits successfully when user clicks on"create new classified" the page just refreshes.

So, what is happening please? thanks. And don't ask me to deactivate all other plugins one at a time please to see if there is clash :slight_smile: