Hi @vuesomedev
Welcome to the Auth0 Community.
If you have configured a SPA application then you just need to ensure on Auth0 that the Application Type is set to Single Page Application:
To troubleshoot the issue I would download the sample app from here https://auth0.com/docs/quickstart/spa/react wire it up to your tenant and see if you can replicate the issue. If it works here you can compare with your project to check differences and isolate the issue that way.
Let us know if you need anything further.
Warm regards.