How to implement user deletion?

//auth.ts
user: {
    changeEmail: {
      enabled: true,
    },
    deleteUser: {
      enabled: true,
    },
  },

//nextjs client page
function onSubmit() {
    startTransition(async () => {
      await authClient.deleteUser();
    });
  }

user-delete-form.tsx:26 
 POST http://localhost:3000/api/auth/delete-user?currentURL=http%3A%2F%2Flocalhost%3A3000%2Fapp%2Fsettings%2Fpassword-and-security 403 (FORBIDDEN)
await in betterFetch        
(anonymous)    @    user-delete-form.tsx:26
onSubmit    @    user-delete-form.tsx:25