Traceback (most recent call last):
  File "electrum\lnworker.py", line 1738, in add_request
  File "concurrent\futures\_base.py", line 448, in result
concurrent.futures._base.TimeoutError

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "electrum\gui\qt\main_window.py", line 1145, in <lambda>
  File "electrum\gui\qt\main_window.py", line 1254, in create_invoice
  File "electrum\lnworker.py", line 1740, in add_request
Exception: add invoice timed out