File "electrum/gui/qt/address_list.py", line 226, in create_menu
  File "electrum/wallet.py", line 445, in get_spendable_coins
  File "electrum/address_synchronizer.py", line 410, in f
  File "electrum/address_synchronizer.py", line 762, in get_utxos
  File "electrum/address_synchronizer.py", line 694, in get_addr_utxo