Firstly, this widget would show the total of products instock. You can use it on Single Product Page or another page (but you just can show the total for only 1 product)
Step 1: Create the single page by Elementor Theme Builder.
Step 2: In Elementor Editor Panel > Add PAFE Count Down widget.
Step 3: Customize the settings and styles. If you don’t use it on a Single Product page, you must fill in the product ID which you want to show the total.