@rtsn Go to http://sn.jonkman.ca/group/coffee, click on "Subscribe" and then enter https://gnusocial.de/rtsn -- that gets me the login screen on your server. Don't know why the @ address doesn't work, tho...
Looks like your post addressed the !Coffee group at http://sn.jonkman.ca/group/coffee To ensure your messages go to the correct group, you need to unsubscribe from all the other !Coffee groups
@benfell@cybernude.org There have been some other subscriptions to the !coffee group on sn.jonkman.ca so it's working, but I can see there are many other !coffee groups on other instances: 1) https://status.vinilox.eu/group/1812/id 2) http://oracle.skilledtests.com/group/475/id 3) https://status.fsf.org/group/1/id 4) https://loadaverage.org/group/985/id Make sure you're not joined to any of them. Also, try subscribing by putting your OStatus address benfell@cybernude.org into the "Profile Account" field on http://sn.jonkman.ca/group/coffee or if that doesn't work put in your URL https://cybernude.org/benfell If you still have problems after that let me know and I'll look for bits to twiddle inside the database.