The old public.etherpad is now dead so basically everything is lost New Pad, New Paste
I already written to them to try to recover like 20+ more pads that my community had there.
Instead for the new one the stuff is kept just for 7 days also if you are logged so basically Mozilla killed one of the tool most used by the community.
Try new services like cryptopad because also etherpad.net will be killed for the end of the year.