Enfold is not working with PHP versions higher than 5.6

I am having trouble updating my content, every time i go into WP I have to downgrade my PHP to 5.6 to update a page , post or even a plugin. The issue is that when PHP is running Ver 7.0+ i get the screen of death (white screen ) when an update is clicked on or the following message

ERROR THROWN ereg()

I would be able to give you access, this is what I have done – PHP issues still exist

1. Deactivated all plugins – still doesn’t work
2. Updated Enfold Theme to ver 4.6 still doesn’t work
3. Error log – see private content