Catchable fatal error: Argument 1 passed to Frame_Decorator::copy() must be an instance of DOMNode, boolean given, called in /home/storage/2/0e/23/revistastaff/public_html/inc/dompdf/include/text_frame_decorator.cls.php on line 132 and defined in /home/storage/2/0e/23/revistastaff/public_html/inc/dompdf/include/frame_decorator.cls.php on line 118