Error on streaming a conversation event when sending a dm to oneself

[error] Process #PID<0.25877.15> on node :"pleroma@127.0.0.1" raised an exception ** (UndefinedFunctionError) function nil.ap_id/0 is undefined     nil.ap_id()     (pleroma 2.1.50-200-g712accef-feat-connection-worker-monitor-flush) lib/pleroma/web/mastodon_api/views/conversation_view.ex:27: Pleroma.Web.MastodonAPI.ConversationView.render/2     (pleroma 2.1.50-200-g712accef-feat-connection-worker-monitor-flush) lib/pleroma/web/views/streamer_view.ex:81: Pleroma.Web.StreamerView.render/2     (pleroma 2.1.50-200-g712accef-feat-connection-worker-monitor-flush) lib/pleroma/web/streamer/streamer.ex:227: Pleroma.Web.Streamer.push_to_socket/2