it used to be that i would go to the website, and an a alert would show up saying "Error: your account has been IP banned" but would let me access the website but I couldn't log in or play projects. now Its just a black screen that shows text: your IP has been banned or something.
The black screen is the right thing to show when an IP is banned. I doubt you ever got anything else, since that check is made right when the first request from a client comes in, and prevents any further access. If you ever got something else, it means it was not an IP ban in the past.
Can you try to find out your public facing IP so I can unban it?