Can I plaster a textured or woven wallpaper?

Yes, you can. The trick is to plaster widely and in several layers. This is because plaster dries and does not adhere well if it is applied too thickly. The best tactic is therefore to make several thin layers instead to get a better end result. Make sure you have a reasonably smooth surface between each coat and remove any dust before applying the next coat. See how to do it here: Plastering walls – how to, step by step