Bizarre, that your Instagram account got blacklisted or de-authorized or whatever you call it. I'm just going to call it de-authorized, I know that's the wrong term but you know what I mean.
Anyway. So, personally, I haven't encountered this. I have an Instagram account that I use for my "normal" or "civilian" life (a.k.a. no strip-club or monger activity), with which I follow a lot of visual artists that I like. I have made literally zero posts of my own on it. Furthermore, I have deliberately gone into the Instagram settings and disconnected my Facebook/Meta membership from that Instagram account so, even though I do have a Facebook membership related to the same email address, nevertheless the Facebook and Instagram never connect to one another. And yet I've never had any sort of de-authorization like you had.
I relate all this just to suggest, that one reason the de-authorization may have happened to you, is that you have monger-style activity on it. You're following scantily clad chicas who may have triggered other Instagram algorithm concerns. So, the watercolorists and figure-drawing experts who post hand-drawn graphite works that depict someone's kneecap whom I follow, all are on a lower security level for Instagram's de-authorize-o-bot, than your chicas.
Just a guess, suggestion. Maybe? Maybe not?