OSError: [Errno 28] No space left on device

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/user/wspace/electrum/.buildozer/android/app/electrum/util.py", line 1599, in test_read_write_permissions
OSError: [Errno 28] No space left on device

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/storage.py", line 67, in __init__
  File "/home/user/wspace/electrum/.buildozer/android/app/electrum/util.py", line 1604, in test_read_write_permissions
OSError: [Errno 28] No space left on device

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

Traceback (most recent call last):
  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/app/electrum/gui/kivy/uix/dialogs/password_dialog.py", line 227, in <lambda>
  File "/home/user/wspace/electrum/.buildozer/android/app/electrum/gui/kivy/uix/dialogs/password_dialog.py", line 333, in <lambda>
  File "/home/user/wspace/electrum/.buildozer/android/app/electrum/gui/kivy/main_window.py", line 702, in on_open_wallet
  File "/home/user/wspace/electrum/.buildozer/android/app/electrum/gui/kivy/main_window.py", line 667, in on_wizard_success
  File "/home/user/wspace/electrum/.buildozer/android/app/electrum/wallet.py", line 3408, in update_password_for_directory
  File "/home/user/wspace/electrum/.buildozer/android/app/electrum/wallet.py", line 3352, in check_password_for_directory
  File "/home/user/wspace/electrum/.buildozer/android/app/electrum/storage.py", line 69, in __init__
electrum.storage.StorageReadWriteError: [Errno 28] No space left on device