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/gui/qml/qenetwork.py", line 216, in server
  File "/home/user/wspace/electrum/.buildozer/android/app/electrum/network.py", line 408, in run_from_another_thread
  File "/home/user/wspace/electrum/.buildozer/android/platform/build-armeabi-v7a/build/other_builds/python3/armeabi-v7a__ndk_target_23/python3/Lib/concurrent/futures/_base.py", line 444, in result
  File "/home/user/wspace/electrum/.buildozer/android/platform/build-armeabi-v7a/build/other_builds/python3/armeabi-v7a__ndk_target_23/python3/Lib/concurrent/futures/_base.py", line 389, in __get_result
  File "/home/user/wspace/electrum/.buildozer/android/app/electrum/util.py", line 1154, in wrapper
  File "/home/user/wspace/electrum/.buildozer/android/app/electrum/network.py", line 687, in set_parameters
  File "/home/user/wspace/electrum/.buildozer/android/app/electrum/simple_config.py", line 111, in _set_config_value
  File "/home/user/wspace/electrum/.buildozer/android/app/electrum/simple_config.py", line 301, in set_key
  File "/home/user/wspace/electrum/.buildozer/android/app/electrum/simple_config.py", line 311, in _set_key_in_user_config
  File "/home/user/wspace/electrum/.buildozer/android/app/electrum/simple_config.py", line 424, in save_user_config
OSError: [Errno 28] No space left on device