error-xmpp.log

2020-02-11 22:21:50 ERROR (MainThread) [homeassistant.core] Error doing job: Fatal error: protocol.data_received() call failed.
Traceback (most recent call last):
  File "/usr/local/lib/python3.7/asyncio/selector_events.py", line 826, in _read_ready__data_received
    self._protocol.data_received(data)
  File "/usr/local/lib/python3.7/site-packages/slixmpp/xmlstream/xmlstream.py", line 406, in data_received
    self._spawn_event(xml)
  File "/usr/local/lib/python3.7/site-packages/slixmpp/xmlstream/xmlstream.py", line 970, in _spawn_event
    stanza = self._build_stanza(xml)
  File "/usr/local/lib/python3.7/site-packages/slixmpp/xmlstream/xmlstream.py", line 951, in _build_stanza
    stanza = stanza_type(self, xml)
  File "/usr/local/lib/python3.7/site-packages/slixmpp/xmlstream/stanzabase.py", line 1390, in __init__
    ElementBase.__init__(self, xml, parent)
  File "/usr/local/lib/python3.7/site-packages/slixmpp/xmlstream/stanzabase.py", line 416, in __init__
    if self.setup(xml):
  File "/usr/local/lib/python3.7/site-packages/slixmpp/stanza/stream_features.py", line 27, in setup
    self.values = self.values
  File "/usr/local/lib/python3.7/site-packages/slixmpp/xmlstream/stanzabase.py", line 615, in _set_stanza_values
    self[full_interface] = value
  File "/usr/local/lib/python3.7/site-packages/slixmpp/xmlstream/stanzabase.py", line 753, in __setitem__
    lang=lang)
  File "/usr/local/lib/python3.7/site-packages/slixmpp/xmlstream/stanzabase.py", line 959, in _set_sub_text
    return self._del_sub(name, lang=lang)
  File "/usr/local/lib/python3.7/site-packages/slixmpp/xmlstream/stanzabase.py", line 1040, in _del_sub
    parent = self.xml.find(parent_path)
  File "/usr/local/lib/python3.7/xml/etree/ElementTree.py", line 299, in find
    return ElementPath.find(self, path, namespaces)
  File "/usr/local/lib/python3.7/xml/etree/ElementPath.py", line 307, in find
    return next(iterfind(elem, path, namespaces), None)
TypeError: 'NoneType' object is not an iterator
2020-02-11 22:21:50 INFO (MainThread) [slixmpp.xmlstream.xmlstream] connection_lost: (TypeError("'NoneType' object is not an iterator"),)