Blacklisted by SBL, No Idea Why

[VeryConfused]

I joined a forum that looks exactly like this one yesterday, and I had no problem making a post then, but now, it won't let me because SpamHaus has blacklisted me some time in the last 12 hours. SBL has blacklisted me, but when I check the page SpamHaus links me to when I search my ip, it doesn't tell me why. I tried running MalwareBytes, which turned up nothing on my computer. I can't request removal through the link provided by SpamHaus because it demands I have a hostname, even though I've never even had a website or an email host or whatever. I have absolutely no idea why I've been blacklisted or what info I should try to get about my computer to start figuring it out.

Any help would be appreciated.

[Chrispcritters]

What website were you trying to visit and what was the exact error message you saw?

[VeryConfused]

I'm still blacklisted, but the problem I had seems to have gone away, so I guess it doesn't matter anymore. If I should ever have trouble with a different site, I'll try to get myself removed from the blacklist. Thanks