File "/home/flp/Electrum-4.0.2/electrum/gui/qt/__init__.py", line 247, in wrapper
    return func(self, *args, **kwargs)
  File "/home/flp/Electrum-4.0.2/electrum/gui/qt/__init__.py", line 271, in start_new_window
    wallet = self._start_wizard_to_select_or_create_wallet(path)
  File "/home/flp/Electrum-4.0.2/electrum/gui/qt/__init__.py", line 316, in _start_wizard_to_select_or_create_wallet
    db = WalletDB(storage.read(), manual_upgrades=False)
  File "/home/flp/Electrum-4.0.2/electrum/wallet_db.py", line 72, in __init__
    self.load_data(raw)
  File "/home/flp/Electrum-4.0.2/electrum/wallet_db.py", line 105, in load_data
    self.upgrade()
  File "/home/flp/Electrum-4.0.2/electrum/util.py", line 390, in <lambda>
    return lambda *args, **kw_args: do_profile(args, kw_args)
  File "/home/flp/Electrum-4.0.2/electrum/util.py", line 386, in do_profile
    o = func(*args, **kw_args)
  File "/home/flp/Electrum-4.0.2/electrum/wallet_db.py", line 174, in upgrade
    self._convert_version_24()
  File "/home/flp/Electrum-4.0.2/electrum/wallet_db.py", line 530, in _convert_version_24
    for ser, v in l: