"A programming error has been detected"
Popup window open up sometimes with this, haven't been able to pin down exactly when. But I think when it tries to login or tries to login without internet access.
Traceback (most recent call last): File "/usr/lib/python3/dist-packages/gajim/app_actions.py", line 278, in on_open_event dict_['type_']) File "/usr/lib/python3/dist-packages/gajim/gui_interface.py", line 1694, in handle_event session=session) File "/usr/lib/python3/dist-packages/gajim/gui_interface.py", line 2104, in new_chat fjid = contact.jid AttributeError: 'NoneType' object has no attribute 'jid'