Featured Image not showing up on blog

For some reason, the featured image is not showing up on my blog page.
All my other pages have a featured image showing up.

I’ve tried reuploading different images but alas, nothing is working here.

This is the link:
https://feedshop.it/home/blog/
Similarly, the category pages of the blog will also need featured images to replace the blue at the top of the screen:
https://feedshop.it/category/analytics/
https://feedshop.it/category/how-tos/

I’m assuming this is all related. Does anyone know the issue?

Really appreciate your help guys. Thanks!