To remove the Sticky Header on your Site, you need to go to Dashboard > WoodMart > Header Builder > edit your Header Layout > which is currently named as “Header” > under that, edit your Main Header: https://ibb.co/4FxPRfm
In that you can find the option “Make Sticky” that you need to turn off > and you are good to go: https://ibb.co/NVHyP7D