Aizaz Imtiaz Awan
Firstly, one thing to understand here is that the default Single Product page layout comes from WooCommerce by default so you can’t edit the Product directly with the page builder plugin like Elementor or WPBakery. It is not allowed from WooCommerce end by default.
But under the WoodMart Theme, it allows you to create a Custom Single Product layout using the Theme’s Layout Builder and then apply that layout to the Products. So, we have checked and confirmed on your Site, the Custom Single Product layout is being edited with Elementor fine: https://snipboard.io/GxRak7.jpg
Please check back your Site after completely clearing browser and server cache.