After installation, don’t forget to configure your woocommerce properly. Please, follow Woocommerce configuration
if you didn’t use wordpress early, here is tutorial WordPress for novices
Basic settings of theme is described in documentation about Rehub settings
Check also in-depth tutorial how to make game sites on Rehub
If you need help with Woocommerce setup, here is another video. I recommend to check also other videos on channel
Also, some blocks on Homepage have no products. It’s because demo import doesn’t create all filters on your site to prevent database overloading. So, you just need to edit blocks on homepage via Elementor and select product types which you need in Data query