File "/data/user/0/org.electrum.electrum/files/app/crystax_python/site-packages/kivy/core/window/window_sdl2.py", line 727, in mainloop
    self._mainloop()
  File "/data/user/0/org.electrum.electrum/files/app/crystax_python/site-packages/kivy/core/window/window_sdl2.py", line 460, in _mainloop
    EventLoop.idle()
  File "/data/user/0/org.electrum.electrum/files/app/crystax_python/site-packages/kivy/base.py", line 340, in idle
    self.dispatch_input()
  File "/data/user/0/org.electrum.electrum/files/app/crystax_python/site-packages/kivy/base.py", line 325, in dispatch_input
    post_dispatch_input(*pop(0))
  File "/data/user/0/org.electrum.electrum/files/app/crystax_python/site-packages/kivy/base.py", line 291, in post_dispatch_input
    wid.dispatch('on_touch_up', me)
  File "kivy/_event.pyx", line 707, in kivy._event.EventDispatcher.dispatch
  File "/data/user/0/org.electrum.electrum/files/app/crystax_python/site-packages/kivy/uix/behaviors/button.py", line 179, in on_touch_up
    self.dispatch('on_release')
  File "kivy/_event.pyx", line 703, in kivy._event.EventDispatcher.dispatch
  File "kivy/_event.pyx", line 1214, in kivy._event.EventObservers.dispatch
  File "kivy/_event.pyx", line 1098, in kivy._event.EventObservers._dispatch
  File "/data/user/0/org.electrum.electrum/files/app/crystax_python/site-packages/kivy/lang/builder.py", line 64, in custom_callback
    exec(__kvlang__.co_value, idmap)
  File "<string>", line 24, in <module>
  File "./electrum/gui/kivy/uix/screens.py", line 265, in <lambda>
    d = Question(_('Should this transaction be replaceable?'), lambda b: self._do_send(amount, message, outputs, b))
  File "./electrum/gui/kivy/uix/screens.py", line 273, in _do_send
    coins = self.app.wallet.get_spendable_coins(None, config)
  File "./electrum/wallet.py", line 372, in get_spendable_coins
    return self.get_utxos(domain, excluded=self.frozen_addresses, mature=True, confirmed_only=confirmed_only)
  File "./electrum/address_synchronizer.py", line 472, in f
    return func(self, *args, **kwargs)
  File "./electrum/address_synchronizer.py", line 768, in get_utxos
    utxos = self.get_addr_utxo(addr)
  File "./electrum/address_synchronizer.py", line 716, in get_addr_utxo
    coins.pop(txi)