Traceback (most recent call last):
  File "electrum\gui\qt\transaction_dialog.py", line 581, in do_broadcast
  File "electrum\gui\qt\send_tab.py", line 541, in save_pending_invoice
  File "electrum\wallet.py", line 1196, in save_invoice
  File "electrum\wallet.py", line 482, in save_db
  File "electrum\json_db.py", line 48, in wrapper
  File "electrum\json_db.py", line 387, in write
  File "electrum\json_db.py", line 48, in wrapper
  File "electrum\util.py", line 481, in do_profile
  File "electrum\json_db.py", line 411, in write_and_force_consolidation
  File "electrum\storage.py", line 104, in write
PermissionError: [WinError 32] The process cannot access the file because it is being used by another process: 'd:\\dropbox\\andrey\\wallets\\electrum.wallet.tmp.36400' -> 'd:\\dropbox\\andrey\\wallets\\electrum.wallet'