Hello, does your theme have conflict with Flux Checkout plugin? The plugin dev is saying that Woodmart checkout template is preventing flux checkout plugin from overriding it
Thank you so much for purchasing our theme and contacting our support center.
Currently, you have a custom layout displayed on the checkout page. Try to disable it to show the default WooCommerce checkout in Dashboard -> WoodMart -> Layouts -> Checkout. Let us know if it helps.