File "/usr/local/lib/python3.6/dist-packages/electrum/util.py", line 882, in run_with_except_hook
    run_original(*args2, **kwargs2)
  File "/usr/local/lib/python3.6/dist-packages/electrum/interface.py", line 244, in run
    socket = self.get_socket()
  File "/usr/local/lib/python3.6/dist-packages/electrum/interface.py", line 213, in get_socket
    with open(cert_path, encoding='utf-8') as f: