Nothing is visible on the website after the update.

I have updated many things – including this plugin – on my website. It first told me to make a layer, and then the migration has done. Nothing appeard on webpage.

I tried to restore the old plugin, tried to configure the new one, cleared the cache and minified things, but still not good. The product slider does not appear on either the home page or the previews. If I look at the source code e.g. In Mozilla, I can see the relevant section (including the products to be linked in), but it shows me that source code part in gray and nothing will appear. It would be urgent to restore the home page. Can you help?

The page I need help with: [log in to see the link]