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 396, in write
  File "electrum\json_db.py", line 48, in wrapper
  File "electrum\util.py", line 483, in do_profile
  File "electrum\json_db.py", line 420, in write_and_force_consolidation
  File "electrum\storage.py", line 106, in write
PermissionError: [WinError 32] The process cannot access the file because it is being used by another process: 'h:\\dropbox\\general doc\\bitcoin\\electrum\\feb2021\\default_wallet.tmp.8724' -> 'h:\\dropbox\\general doc\\bitcoin\\electrum\\feb2021\\default_wallet'