Traceback (most recent call last):
  File "/app/lib/python3.11/site-packages/electrum/gui/qt/send_tab.py", line 570, in do_pay_or_get_invoice
    self.do_pay_invoice(self.pending_invoice)
  File "/app/lib/python3.11/site-packages/electrum/gui/qt/send_tab.py", line 597, in do_pay_invoice
    self.pay_onchain_dialog(invoice.outputs, invoice=invoice)
  File "/app/lib/python3.11/site-packages/electrum/gui/qt/send_tab.py", line 344, in pay_onchain_dialog
    self.save_pending_invoice()
  File "/app/lib/python3.11/site-packages/electrum/gui/qt/send_tab.py", line 541, in save_pending_invoice
    self.wallet.save_invoice(self.pending_invoice)
  File "/app/lib/python3.11/site-packages/electrum/wallet.py", line 1191, in save_invoice
    self.save_db()
  File "/app/lib/python3.11/site-packages/electrum/wallet.py", line 482, in save_db
    self.db.write()
  File "/app/lib/python3.11/site-packages/electrum/json_db.py", line 48, in wrapper
    return func(self, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/lib/python3.11/site-packages/electrum/json_db.py", line 389, in write
    self._append_pending_changes()
  File "/app/lib/python3.11/site-packages/electrum/json_db.py", line 48, in wrapper
    return func(self, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/lib/python3.11/site-packages/electrum/json_db.py", line 400, in _append_pending_changes
    self.storage.append(s)
  File "/app/lib/python3.11/site-packages/electrum/storage.py", line 112, in append
    f.write(data.encode("utf-8"))
OSError: [Errno 38] Funktion inte implementerad