TypeError: '<' not supported between instances of 'NoneType' and 'str'

[wo01]

Crash Report

This crash report was reported through the automatic crash reporting system 🤖

Traceback

  File "Electrum-3.2.2-py3.6.egg/electrum/util.py", line 832, in run_with_except_hook
  File "Electrum-3.2.2-py3.6.egg/electrum/network.py", line 1060, in run
  File "Electrum-3.2.2-py3.6.egg/electrum/network.py", line 1042, in wait_on_sockets
  File "Electrum-3.2.2-py3.6.egg/electrum/network.py", line 709, in process_responses
  File "Electrum-3.2.2-py3.6.egg/electrum/network.py", line 652, in process_response
  File "Electrum-3.2.2-py3.6.egg/electrum/verifier.py", line 116, in verify_merkle
  File "Electrum-3.2.2-py3.6.egg/electrum/wallet.py", line 305, in save_verified_tx
  File "Electrum-3.2.2-py3.6.egg/electrum/util.py", line 317, in <lambda>
  File "Electrum-3.2.2-py3.6.egg/electrum/util.py", line 313, in do_profile
  File "Electrum-3.2.2-py3.6.egg/electrum/storage.py", line 247, in write
  File "Electrum-3.2.2-py3.6.egg/electrum/storage.py", line 255, in _write
  File "json/__init__.py", line 238, in dumps
  File "json/encoder.py", line 201, in encode
  File "json/encoder.py", line 430, in _iterencode
  File "json/encoder.py", line 404, in _iterencode_dict
  File "json/encoder.py", line 353, in _iterencode_dict

TypeError: '<' not supported between instances of 'NoneType' and 'str'

Reporter

This issue was reported by 1 user(s):

Electrum Version	Operating System	Wallet Type	Locale
3.2.2	Darwin-17.5.0-x86_64-i386-64bit	standard	?

Additional Information

The reporting user(s) did not provide additional information.