Regressive clock

How can I make the clock work? Here I leave the template that I want to make work

You have support on place where you have buy this template.

Could you tell me where I can ask the question? The author told me that he did not respond.

In that case you have documentation from that template. Only template developer is giving support for his template.
Or last option is to hire someone who will make all what you want on your site.