Ok, so was hit with the updated released specifically to detect sites with AI.
But, on the other hand, you had purchased backlinks, an illegal practice therefore.
I plan to start a few sites (the highest possible number) with AI, but I will not buy anything, no backlinks, maybe some social signals from Facebook, Pinterest, Reddit and Tumblr on seoclerk, like 15k social signals for 5$.
In any case, even if the site is penalized after 6-7-8 months, there has been a good profit and it is possible to make a new one, and continuing like this forever.