I’ve setup an NC15 with social app. The app itself seems to work, but if I try to follow someone at mastodon or friendica an error occurs.
E.g. at https://newsbots.eu/users/dw_deutsch/remote_follow I get “Die erforderliche Weiterleitungs-URL für dein Konto konnte nicht gefunden werden” (something like “could not find redirect url”).
Any hints?