I can't get the domain to forward with www attached

I'm stuck. My website is built on googlesites and I have managed to forward my domain to it however it does not work when www is placed infront of it and I don't know how to fix it.

Hi @trudibarrow. I recommend confirming that you've added a forwarding rule to redirect your root domain to the "www" version of your domain. See our guide for details:

Connecting your Squarespace-managed domain to a Google Sites site: Adding the domain forwarding rule

If you have any trouble, please contact our Customer Support team directly, here: 

https://support.squarespace.com/hc/requests/new#choose-topic