Hi, 

Background : 

I installed Odoo16 on Ubuntu 22.04 running on a micro server. I am using nginx and I have install certbot to access the server through HTTPS. 

Problem:

When I access Odoo through a client outside of the office network and try to create a product, then I receive the following error message:

UncaughtPromiseError > TypeError

Uncaught Promise > null is not an object (evaluating 'originalError.__raisedOnFormSave')

TypeError: null is not an object (evaluating 'originalError.__raisedOnFormSave')

    formSaveErrorHandler@https://beyondcoffee.shop/web/assets/141-e32e904/web.assets_backend.min.js:3937:155

    handleError@https://beyondcoffee.shop/web/assets/141-e32e904/web.assets_backend.min.js:672:78

    @https://beyondcoffee.shop/web/assets/141-e32e904/web.assets_backend.min.js:677:38

    asyncFunctionResume@[native code]

I have already update Odoo, but the problem persists.

I would appreciate If someone could help solve this issue. I know very little about the code and how to manage Odoo. So, I would appreciate a step-by-step answer of the things I am supposed to do to fix the issue. Thank you for your understanding.