File "electrum\gui\qt\main_window.py", line 1632, in do_pay
  File "electrum\gui\qt\main_window.py", line 1646, in do_pay_invoice
  File "electrum\gui\qt\main_window.py", line 1715, in pay_onchain_dialog
  File "electrum\gui\qt\main_window.py", line 1624, in save_pending_invoice
  File "electrum\wallet.py", line 790, in save_invoice
  File "electrum\wallet.py", line 315, in save_db
  File "electrum\wallet_db.py", line 1344, in write
  File "electrum\util.py", line 412, in <lambda>
  File "electrum\util.py", line 408, in do_profile
  File "electrum\wallet_db.py", line 1354, in _write
  File "electrum\storage.py", line 87, in write