@josecarlostf Excellent, thank you. That’s good news as I was looking for ways to remove it from information schema, but probably it can’t be done.
@kogluxury Yes, what @josecarlostf said. I made a mistake of installing nnulled plugin and there was some malicious addition in it, which I probably wouldn’t even detect, if it weren’t for Google Ads rejection. I did however learnt a loooot (and slept not so much :D) in the process regarding webpage management, WP structure, php, mySQL,… ??