Please could you login in my site and check.
Already I have enable the debug option in wp config file.
The problem is dispaying when I save Home page.
PS The site is demo, so you could change anything you want.
After installation the final version I have the same problem…
I was looking for this and I find that when delete the <?php Jevelin_Schema::blog(); ?> from content.php file problem solved!
Could you please check why this cause the problem?