Google Crawling only one page

Decided to keep this apart from the other question.

I also have on and-off issues with google bot only crawling one page.
I configured my site it as https://nv8v.com in wordrpess. Despite wordpress being supposed to deal with this, sometimes the bot tries to crawl https://www.nv8v.com , complains about fnding no robots.text and leaves.
I was exploring this when discovering the tags problem

The page I need help with: [log in to see the link]