Fatal error: Uncaught MpdfException: WriteHTML() requires $html be an integer, float, string, boolean or an object with the __toString() magic method. in /homepages/25/d109824502/htdocs/wohnmobile/mobile-de-neu/mpdf/mpdf.php:15884 Stack trace: #0 /homepages/25/d109824502/htdocs/wohnmobile/mobile-de-neu/itsmobile_pdf.php(20): mPDF->WriteHTML(NULL, 2) #1 {main} thrown in /homepages/25/d109824502/htdocs/wohnmobile/mobile-de-neu/mpdf/mpdf.php on line 15884