Thought you’d like to know that your Feed Plugin Demo is giving errors. It’s not working on my site either, but since it’s not working in your demo that seems more important.
Ok this is strange. I’m not seeing this error on my local, but concur that it is happening in the demo. I will track this down after the Christmas holiday.
Good luck finding the bug. Hope you Have an excellent Christmas, and thanks for responding so quickly.
Fixed in Feed v1.3.1 - http://getgrav.org/downloads/plugins