Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/gi/overrides/GLib.py", line 747, in <lambda>
func_fdtransform = lambda _, cond, *data: callback(channel, cond, *data)
File "/usr/lib/python3/dist-packages/nbxmpp/idlequeue.py", line 563, in _process_events
return IdleQueue._process_events(self, fd, flags)
File "/usr/lib/python3/dist-packages/nbxmpp/idlequeue.py", line 411, in _process_events
obj.pollin()
File "/usr/lib/python3/dist-packages/nbxmpp/transports_nb.py", line 448, in pollin
self._do_receive()
File "/usr/lib/python3/dist-packages/nbxmpp/transports_nb.py", line 673, in _do_receive
self._on_receive(received)
File "/usr/lib/python3/dist-packages/nbxmpp/transports_nb.py", line 687, in _on_receive
self.on_receive(data)
File "/usr/lib/python3/dist-packages/nbxmpp/dispatcher_nb.py", line 531, in _WaitForData
resp(self._owner, _iq, **args)
File "/usr/lib/python3/dist-packages/gajim/./data/plugins/omemo/omemo_connection.py", line 783, in session_from_prekey_bundle
self.plugin.new_fingerprints_available(ctrl)
File "/usr/lib/python3/dist-packages/gajim/./data/plugins/omemo/omemoplugin.py", line 278, in new_fingerprints_available
chat_control, fingerprints)
File "/usr/lib/python3/dist-packages/gajim/./data/plugins/omemo/omemoplugin.py", line 293, in show_fingerprint_window
self.windowinstances)
File "/usr/lib/python3/dist-packages/gajim/./data/plugins/omemo/ui.py", line 394, in __init__
vbox.pack_start(self.notebook, True, True, 0)
TypeError: Argument 1 does not allow None as a value