File "kivy/_clock.pyx", line 645, in kivy._clock.CyClockBase._process_events
  File "kivy/_clock.pyx", line 218, in kivy._clock.ClockEvent.tick
  File "/home/user/wspace/electrum/.buildozer/android/platform/build-arm64-v8a/build/python-installs/Electrum/kivy/animation.py", line 353, in _update
  File "/home/user/wspace/electrum/.buildozer/android/platform/build-arm64-v8a/build/python-installs/Electrum/kivy/animation.py", line 218, in stop
  File "kivy/_event.pyx", line 720, in kivy._event.EventDispatcher.dispatch
  File "kivy/_event.pyx", line 1263, in kivy._event.EventObservers.dispatch
  File "kivy/_event.pyx", line 1187, in kivy._event.EventObservers._dispatch
  File "/home/user/wspace/electrum/.buildozer/android/platform/build-arm64-v8a/build/python-installs/Electrum/kivy/uix/modalview.py", line 231, in <lambda>
  File "kivy/_event.pyx", line 724, in kivy._event.EventDispatcher.dispatch
  File "/home/user/wspace/electrum/.buildozer/android/app/electrum/gui/kivy/uix/dialogs/qr_dialog.py", line 87, in on_open
  File "/home/user/wspace/electrum/.buildozer/android/app/electrum/gui/kivy/uix/qrcodewidget.py", line 73, in set_data
  File "kivy/properties.pyx", line 498, in kivy.properties.Property.__set__
  File "kivy/properties.pyx", line 545, in kivy.properties.Property.set
  File "kivy/properties.pyx", line 600, in kivy.properties.Property.dispatch
  File "kivy/_event.pyx", line 1263, in kivy._event.EventObservers.dispatch
  File "kivy/_event.pyx", line 1169, in kivy._event.EventObservers._dispatch
  File "/home/user/wspace/electrum/.buildozer/android/app/electrum/gui/kivy/uix/qrcodewidget.py", line 63, in on_data
  File "/home/user/wspace/electrum/.buildozer/android/app/electrum/gui/kivy/main_window.py", line 511, in on_qr_failure
  File "/home/user/wspace/electrum/.buildozer/android/platform/build-arm64-v8a/build/python-installs/Electrum/kivy/core/clipboard/__init__.py", line 73, in copy
  File "/home/user/wspace/electrum/.buildozer/android/platform/build-arm64-v8a/build/python-installs/Electrum/kivy/core/clipboard/__init__.py", line 87, in _copy
  File "/home/user/wspace/electrum/.buildozer/android/platform/build-arm64-v8a/build/python-installs/Electrum/kivy/core/clipboard/clipboard_android.py", line 37, in put
  File "/home/user/wspace/electrum/.buildozer/android/platform/build-arm64-v8a/build/python-installs/Electrum/kivy/core/clipboard/clipboard_android.py", line 57, in called
  File "/home/user/wspace/electrum/.buildozer/android/platform/build-arm64-v8a/build/python-installs/Electrum/kivy/core/clipboard/clipboard_android.py", line 91, in _set
  File "jnius/jnius_export_class.pxi", line 769, in jnius.jnius.JavaMethod.__call__
  File "jnius/jnius_export_class.pxi", line 863, in jnius.jnius.JavaMethod.call_method
  File "jnius/jnius_utils.pxi", line 91, in jnius.jnius.check_exception