Ye when I find out I will let you know. I have a suspicion why but it's a bit shitty for them to give me no warnings and to just ban me without explanation. If I try to access the site without a VPN I get a white page with this in the middle.
Does your ISP assign you a dynamic IP? If so, it could be something as simple as you being assigned an IP address that has already been banned due to another, now banned, member being assigned it previously.