I have followed video to configure the sidebar (PbThemes, Widget)but it is still not showing on the website. I moved the widget to Woocommerce post sidebar but unfortunately result is still the same” not showing on the product posts”.
The issue is that you have the widgets in the wrong place (this happened to me too!). You want to have them in the WooCommerce Archive Sidebar, and, if you want them to show on the product posts, the WooCommerce Posts Sidebar shown in the screenshot below; you would need to place them in the WooCommerce Archive Sidebar. Placing them in the WooCommerce Post Sidebar will show them on individual product posts.