on generating ewaybill through irn following traceback is produced
```py
Traceback (most recent call last):
  File "/home/odoo/src/odoo/saas-18.1/odoo/http.py", line 1997, in _transactioning
    return service_model.retrying(func, env=self.env)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/odoo/src/odoo/saas-18.1/odoo/service/model.py", line 137, in retrying
    result = func()
             ^^^^^^
  File "/home/odoo/src/odoo/saas-18.1/odoo/http.py", line 1964, in _serve_ir_http
    response = self.dispatcher.dispatch(rule.endpoint, args)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/odoo/src/odoo/saas-18.1/odoo/http.py", line 2214, in dispatch
    result = self.request.registry['ir.http']._dispatch(endpoint)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/odoo/src/odoo/saas-18.1/odoo/addons/base/models/ir_http.py", line 334, in _dispatch
    result = endpoint(**request.params)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/odoo/src/odoo/saas-18.1/odoo/http.py", line 733, in route_wrapper
    result = endpoint(self, *args, **params_ok)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/odoo/src/odoo/saas-18.1/addons/web/controllers/dataset.py", line 36, in call_button
    action = call_kw(request.env[model], method, args, kwargs)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/odoo/src/odoo/saas-18.1/odoo/service/model.py", line 62, in call_kw
    result = getattr(recs, name)(*args, **kwargs)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/odoo/src/odoo/saas-18.1/addons/l10n_in_ewaybill_irn/models/l10n_in_ewaybill.py", line 49, in action_generate_ewaybill
    ewaybill._generate_ewaybill_by_irn()
  File "/home/odoo/src/odoo/saas-18.1/addons/l10n_in_ewaybill_irn/models/l10n_in_ewaybill.py", line 56, in _generate_ewaybill_by_irn
    response = self._ewaybill_generate_by_irn(self._ewaybill_generate_irn_json())
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/odoo/src/odoo/saas-18.1/addons/l10n_in_ewaybill_irn/models/l10n_in_ewaybill.py", line 128, in _ewaybill_generate_by_irn
    'message': EWayBillApi.DEFAULT_HELP_MESSAGE % 'generated',
               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
TypeError: unsupported operand type(s) for %: 'LazyGettext' and 'str'
```
In this commit, we fix the above traceback and also fixes a line where the response was not overriden on the next request



---
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