Traceback (most recent call last):
  File "/home/user/wspace/electrum/.buildozer/android/app/electrum/storage.py", line 68, in __init__
  File "/home/user/wspace/electrum/.buildozer/android/app/electrum/util.py", line 2067, in test_read_write_permissions
OSError: echo sanity-check failed

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/home/user/wspace/electrum/.buildozer/android/app/electrum/util.py", line 1216, in run_with_except_hook
  File "/home/user/wspace/electrum/.buildozer/android/platform/build-arm64-v8a/build/python-installs/Electrum/jnius/__init__.py", line 84, in jnius_thread_hook
  File "/home/user/wspace/electrum/.buildozer/android/platform/build-arm64-v8a/build/other_builds/python3/arm64-v8a__ndk_target_21/python3/Lib/threading.py", line 870, in run
  File "/home/user/wspace/electrum/.buildozer/android/app/electrum/gui/qml/qedaemon.py", line 199, in load_wallet_task
  File "/home/user/wspace/electrum/.buildozer/android/app/electrum/daemon.py", line 459, in func_wrapper
  File "/home/user/wspace/electrum/.buildozer/android/app/electrum/daemon.py", line 469, in load_wallet
  File "/home/user/wspace/electrum/.buildozer/android/app/electrum/util.py", line 462, in <lambda>
  File "/home/user/wspace/electrum/.buildozer/android/app/electrum/util.py", line 458, in do_profile
  File "/home/user/wspace/electrum/.buildozer/android/app/electrum/daemon.py", line 486, in _load_wallet
  File "/home/user/wspace/electrum/.buildozer/android/app/electrum/storage.py", line 70, in __init__
electrum.storage.StorageReadWriteError: echo sanity-check failed