Traceback (most recent call last):
  File "uvloop/cbhandles.pyx", line 68, in uvloop.loop.Handle._run
  File "/usr/local/lib/python3.7/site-packages/electrumx/server/session.py", line 851, in connection_lost
    self.session_mgr.remove_session(self)
  File "/usr/local/lib/python3.7/site-packages/electrumx/server/session.py", line 784, in remove_session
    groups = self.sessions.pop(session)
KeyError: <electrumx.server.session.ElectrumX object at 0x7f4e418fab38>
Exception in callback <bound method SessionBase.connection_lost of <electrumx.server.session.ElectrumX object at 0x7f4e41df5c18>>
handle: <Handle SessionBase.connection_lost>
Traceback (most recent call last):
  File "uvloop/cbhandles.pyx", line 68, in uvloop.loop.Handle._run
  File "/usr/local/lib/python3.7/site-packages/electrumx/server/session.py", line 851, in connection_lost
    self.session_mgr.remove_session(self)
  File "/usr/local/lib/python3.7/site-packages/electrumx/server/session.py", line 784, in remove_session
    groups = self.sessions.pop(session)
KeyError: <electrumx.server.session.ElectrumX object at 0x7f4e41df5c18>
INFO:ElectrumX:[207] SSL 139.180.198.147:60122, 140 total
INFO:ElectrumX:[208] SSL 191.183.100.226:10847, 141 total
Exception in callback <bound method SessionBase.connection_lost of <electrumx.server.session.ElectrumX object at 0x7f4e41df5898>>
handle: <Handle SessionBase.connection_lost>
Traceback (most recent call last):
  File "uvloop/cbhandles.pyx", line 68, in uvloop.loop.Handle._run
  File "/usr/local/lib/python3.7/site-packages/electrumx/server/session.py", line 851, in connection_lost
    self.session_mgr.remove_session(self)
  File "/usr/local/lib/python3.7/site-packages/electrumx/server/session.py", line 784, in remove_session
    groups = self.sessions.pop(session)
KeyError: <electrumx.server.session.ElectrumX object at 0x7f4e41df5898>