Traceback (most recent call last):
  File "electrum\gui\qt\wizard\wizard.py", line 218, in on_next_button_clicked
  File "electrum\gui\qt\wizard\wizard.py", line 150, in load_next_component
  File "electrum\plugins\safe_t\qt.py", line 612, in on_ready
    client.handler = self.plugin.create_handler(self.wizard)
AttributeError: 'NoneType' object has no attribute 'handler'