Request for Feedback on HardReject

I recently submitted a template titled “Flexible & Creative Template for Software, SaaS & Startups,” but unfortunately, it was not accepted due to quality concerns. I’d love to improve my work, so could anyone provide advice or feedback on what might not have met the standards?
https://digidigitalplacement.com/Scripts/DesignStarter/template/index.html

Any suggestions would be greatly appreciated!

Demo doesn’t load - if that was the case for the reviewer it would have been immediately rejected