Traceback (most recent call last):
  File "electrum\gui\qt\send_tab.py", line 574, in do_pay_or_get_invoice
  File "electrum\gui\qt\send_tab.py", line 601, in do_pay_invoice
  File "electrum\gui\qt\send_tab.py", line 347, in pay_onchain_dialog
  File "electrum\gui\qt\send_tab.py", line 545, in save_pending_invoice
  File "electrum\wallet.py", line 1193, in save_invoice
  File "electrum\wallet.py", line 479, in save_db
  File "electrum\json_db.py", line 48, in wrapper
  File "electrum\json_db.py", line 398, in write
  File "electrum\json_db.py", line 48, in wrapper
  File "electrum\json_db.py", line 409, in _append_pending_changes
  File "electrum\storage.py", line 114, in append
FileNotFoundError: [Errno 2] No such file or directory: 'f:\\electrum\\electrum'