Sorry didn't take the screenshot, but I get a message akin to "You have been blocked by anubis software" with anubis logo and whatnot. Maybe anubis uses some other plugin or someone just decided to put up such page. Idk.

Imagine Cloudflare "You're blocked" page, but with different design and logos.

I don't think it requested anything else, at least I didn't see anything else. If I find this page again, I'll reply with a link to the screenshot.