That does not work. I’ve done it multiple times.
I also tried reactivating the Jkreativ plugin. Still nothing.
Also, when I look at the drop down options for Portfolio Parent it’s blank. Should there be something there?? I reinstalled the theme on a fresh WP install to see if that was the problem. Still have the same error. Ping me on email and I will give you access to my site so you can check it out for yourself.