it may be related to the ongoing federation problems. https://fedia.io/m/french@sopuli.xyz is working now for me. there are no posts in it yet on our instance because no one had subscribed to it until now.
The server is busily processing the 1,200,000 messages that queued up over the past 20 hours. It’s died 3 times in the past few minutes, so I’m not optimistic about how long this will take
I will lift the ban again. This has happened twice in the past, and each time within ~12 hours, I've had more child porn landing on the server from them. If it happens again though, I will likely leave it that way.