dv14

@ryandiaz, Yes, we had to update the theme, php version, and some other values I recall. I pointed those issues to “WordPress Premium Support” and they fixed it.

Hello,

Yes, everything is updated. WP 5.2 and PHP 7.2.

Row 918 is:
$mfn_wraps[ $parent_wrap_ID ]['items'][] = $item;

from this:

// parent wrap
				$parent_wrap_ID = $_POST['mfn-item-parent'][$type_k];
				$mfn_wraps[ $parent_wrap_ID ]['items'][] = $item;
			}
		}