Notice: A non well formed numeric value encountered in /Inc/System/Functions/FunctionsGlobal.inc.php on line 513

Fatal error: Uncaught Mpdf\MpdfException: Data has already been sent to output (/Inc/System/Functions/FunctionsGlobal.inc.php at line 513), unable to output PDF file in /Inc/Libs/mPDF/src/Mpdf.php:9323 Stack trace: #0 /Product_DataSheet.php(86): Mpdf\Mpdf->Output('02835 - \xD0\x98\xD0\xBD\xD1\x84\xD0...', 'I') #1 {main} thrown in /Inc/Libs/mPDF/src/Mpdf.php on line 9323