You’ll need to ask the developers of your theme about this:
http://www.mojo-themes.com/item/rustik-minimalist-e-commerce-ready-theme/
We don’t have access to commercial themes – one reason they aren’t supported on these forums.
@four La: Are you having the same issue I am having with Rustik theme and page.php? My SHOP page is showing the Products Archive page instead of the Products page (page.php)? I cannot figure out how to get that page to display properly. It was displaying the page.php file but changed overnight and now only loads the archive.php file, which puts a description above the actual product thumbnails and ruins the SHOP page.
If anyone has any ideas, please share. Mojo Themes and https://smashed.desk.com/ are terrible at getting back to people. I’ve been in contact with them a couple times, the rest of the problems/questions, they have ignored. It’s super frustrating!!