I am currently using odoo 16 and i am facing (500: Internal Server Error) while being redirected to /shop/confirmation page after a success payment transaction. Can someone help me?

first error

KeyError: ('ir.ui.view', , 2, False, 'mipp_payment.success_payment', (1,))

During handling of the above exception, another exception occurred:

second error

raise ValueError('View %r in website %r not found' % (xml_id, self._context['website_id']))
ValueError: View 'mipp_payment.success_payment' in website 1 not found

I am new to odoo 16 and trying to develop a new payment acquirer method that can be use in the ecommerce website.Therefore , while being redirected to "/shop/confirmation" page i am getting these error.

Thanking you in advance.