500 while integrating with AngularJS

https://dev-498575.oktapreview.com/api/v1/authn post api throwing the 500 internal server error, while integrating with the angularjs.how to fix this issue?

We need more information. If you are still seeing this issue, can you post a stack trace or the contents of the network request? What parameters are you sending that cause a 500?

i have completed the issue. Thank you all!!!