Okta OIDC Logout 404

Hello, I am having an issue with Okta’s OIDC logout. I have everything setup as I believe it should be but every time I attempt to logout, I am hit with a 404. I could only include 3 images

Sample App at localhost:3000

Logout is initiated here:

I set my logout callback for the application

The 404:

Any help is greatly appreciated.

Thank you.