i want to integrate my html form with camunda user task using external task form.

I have made sure to deploy my html form on xampp and it is accessible through localhost. But when i deploy the process and start the process from the tasklist and on the user task it shows that “Implementation of external from” but when i open it gives 404 error message.
while deploying i have also made sure to include my html form

But when i open the external form from the tasklist, i am getting this error

How do i make sure this works