When I went to https://feddit.de/c/requests@lemmit.online I noticed the sidebar links to /c/about - which doesn't exist on feddit.de
/c/about
I'd suggest to change the link to https://lemmit.online/c/about so people from other instances can find it more easily.
https://lemmit.online/c/about
About the lemmit.online service and its software.
Got questions, complaints, suggestions? This is the place.