Hi there, so sorry to bug you again. I have run into the above error when setting article to featured so that it shows on the home page. If I set featured to no, I get the home page fine with no articles, but setting it to on results in the error.

I have Googled, and found something about adding a line to the index.php file in the template com_content article folder, but there is only default.php so I'm at a loss - these posts were for upgrading older templates to Joomla 2.5, but I thought to give it a try anyway.
I'd appreciate your assistance, thank you
Jude