File "electrum\util.py", line 855, in run_with_except_hook
  File "threading.py", line 864, in run
  File "electrum\base_wizard.py", line 622, in task
  File "electrum\util.py", line 367, in <lambda>
  File "electrum\util.py", line 363, in do_profile
  File "electrum\storage.py", line 122, in write
  File "electrum\storage.py", line 142, in _write