Both blog post and WooCommerce product on one page

I’m in the process of developing my own theme, but I have run into some problems. I’m trying to display both blog posts and WooCommerce products on the same page – not only on the same page, but in my Bootstrap and Masonry grid.

You can see the page here, where it only shows the WooCommerce products: https://poster.weshape.dk/butik/

And the code here: https://codepad.org/4nd0jQs5