Traceback (most recent call last):
  File "electrum\gui\qt\main_window.py", line 2498, in settings_dialog
  File "electrum\gui\qt\settings_dialog.py", line 334, in __init__
  File "electrum\gui\qt\settings_dialog.py", line 289, in update_currencies
  File "electrum\exchange_rate.py", line 552, in get_currencies
  File "electrum\exchange_rate.py", line 516, in get_exchanges_by_ccy
KeyError: 'BitFinex'