A few weeks ago, I tried to post some photos in a topic. I do this using Imgur. I had the option to embed photos there (I don't know exactly how it works).

It didn't work, and the site gave a notification about it. But since then, I haven't been able to access the forum section.

From what I understand, the site runs on somewhat older software, and this embedding detects it as a threat and automatically blocks my IP.

Can someone undo this, because now I have to use a VPN to visit the forum. Thanks in advance.