I am unable to register as a user on OKTA using my local application

I have created a task-specific application, and I must incorporate the capability for new users to register using my Okta local application. I had no trouble entering into my local app using the Okta allocated account; however, when I tried to register a new user through my app, I got a 500 error. Please, I need your help.

For further information, I’ve included the same setup I used to set up my OKTA below.

  1. Single page application is the type of application.

  2. Authorization code, Interaction code, and Refresh token grant types.

  3. Token behavior refresh: After each usage, rotate the token.

  4. 30 second grace period for rotating tokens

  5. Request consent from the user:

  6. The URL for the Sign-In Redirect is https://domain/login/callback.

  7. Sign-Out URL: https://domain

  8. App-only login initiated

  9. https://domain/login/callback is the callback URI.

  10. Federation Broker Mode for immediate app access is enabled

  11. Use CORS by visiting this URL.