Hi Folks - Thanks for your support. So Vlad was on the money; I failed to do the initial npm install command ( noob error - perhaps adding a step to the tutorial would help other green users like me!)
After installing the dependencies, I was able to run the deploy service. However, during deploy, I failed to notice that the process was throwing this error :
This is a toggle setting on the data table itself, not the application as the error message implies, which is recommended to be turned off. Enabling the setting allowed the deploy to work. I thought I’d mention it as it was not obvious.
Thanks again for the support, backup seems to working fine!