Cant get feed to work properly

Hi there guys, my apologies but i tried everything to make my feed to work before i trouble you for help. I only started with the site recently and it is a test site with a subdomain called

i played around with all the different add ons, but i can't pull through a featured image and i set it to full post but it only pulls through two lines.

I use the following feed:

i got the reference from and there they have basically 50% of the feed.

Please help