Fatal error: Uncaught exception 'DOMPDF_Exception' with message 'Unknown image type: .' in /home/revistaf/public_html/libs/dompdf/include/image_cache.cls.php:81 Stack trace: #0 /home/revistaf/public_html/libs/dompdf/include/image_frame_decorator.cls.php(88): Image_Cache::resolve_url('', 'http://', 'www.revista-fer...', '/helpers/') #1 /home/revistaf/public_html/libs/dompdf/include/frame_factory.cls.php(169): Image_Frame_Decorator->__construct(Object(Frame), Object(DOMPDF)) #2 /home/revistaf/public_html/libs/dompdf/include/dompdf.cls.php(392): Frame_Factory::decorate_frame(Object(Frame), Object(DOMPDF)) #3 /home/revistaf/public_html/libs/dompdf/dompdf.php(276): DOMPDF->render() #4 {main} thrown in /home/revistaf/public_html/libs/dompdf/include/image_cache.cls.php on line 81