File "/tmp/.mount_electrm9hgEm/usr/lib/python3.6/site-packages/electrum/gui/qt/main_window.py", line 106, in onPress
    self.func()
  File "/tmp/.mount_electrm9hgEm/usr/lib/python3.6/site-packages/electrum/gui/qt/main_window.py", line 2125, in <lambda>
    self.status_button = StatusBarButton(read_QIcon("status_disconnected.png"), _("Network"), lambda: self.gui_object.show_network_dialog(self))
  File "/tmp/.mount_electrm9hgEm/usr/lib/python3.6/site-packages/electrum/gui/qt/__init__.py", line 192, in show_network_dialog
    self.nd.on_update()
  File "/tmp/.mount_electrm9hgEm/usr/lib/python3.6/site-packages/electrum/gui/qt/network_dialog.py", line 69, in on_update
    self.nlayout.update()
  File "/tmp/.mount_electrm9hgEm/usr/lib/python3.6/site-packages/electrum/gui/qt/network_dialog.py", line 392, in update
    self.nodes_list_widget.update(self.network)
  File "/tmp/.mount_electrm9hgEm/usr/lib/python3.6/site-packages/electrum/gui/qt/network_dialog.py", line 116, in update
    name = b.get_name()
  File "/tmp/.mount_electrm9hgEm/usr/lib/python3.6/site-packages/electrum/blockchain.py", line 235, in get_name
    return self.get_hash(self.get_max_forkpoint()).lstrip('0')[0:10]
  File "/tmp/.mount_electrm9hgEm/usr/lib/python3.6/site-packages/electrum/blockchain.py", line 489, in get_hash
    raise MissingHeader(height)