File "/app/lib/python3.8/site-packages/electrum/gui/qt/transaction_dialog.py", line 339, in save
    if self.main_window.save_transaction_into_wallet(self.tx):
  File "/app/lib/python3.8/site-packages/electrum/gui/qt/main_window.py", line 3424, in save_transaction_into_wallet
    self.wallet.save_db()
  File "/app/lib/python3.8/site-packages/electrum/wallet.py", line 315, in save_db
    self.db.write(self.storage)
  File "/app/lib/python3.8/site-packages/electrum/wallet_db.py", line 1354, in write
    self._write(storage)
  File "/app/lib/python3.8/site-packages/electrum/util.py", line 412, in <lambda>
    return lambda *args, **kw_args: do_profile(args, kw_args)
  File "/app/lib/python3.8/site-packages/electrum/util.py", line 408, in do_profile
    o = func(*args, **kw_args)
  File "/app/lib/python3.8/site-packages/electrum/wallet_db.py", line 1364, in _write
    storage.write(json_str)
  File "/app/lib/python3.8/site-packages/electrum/storage.py", line 84, in write
    with open(temp_path, "w", encoding='utf-8') as f: