Can i enter italy again? US student [closed]

I started my first year of university in italy in october 2016-june 2017, all my affairs(permit+grades) in order, went back to my residence, came back on the 15th of august 2015, during which issues came up and therefore i was unable to do the whole permit thing and pay uni. I was there until December 12, and i went back to Italy on the 19th of January until the 31st of May. I was attending classes, cause you can do that, but i couldn’t pay or really go back to where i am living at that moment. I came back, and only recently i found out that there is a chance i might not be let in.

This is a theory though. I might be let it.or not. HAD i known this, i would have applied for a schengen visa in june, and i wasn’t certain about going back to italy until september 10( out of my hands). I can’t ask my friend to get these documents, because i need to do it myself, in order to continue in italy ( reapply for a student visa), and no one will give it to a person with a different mail.

My guess is that i got let in back in jan and left in may with no fine or border ban( they should have told me if they did, right) is because the permit was in the renewal stage, which i couldn’t do –

So do you guys/girls think that it’s possible my regular 90/180 free travelling kicks when i step foot in italy? And yes, i have a meeting at the embassy at the end of the week to check.I just need to get into italy to fix my affairs. If you know anything, it would really mean a lot if you could share the information –

I had a residence permit, that was valid for a year. In Italy you have to do it every year, unlike most eu countries