32 Chart read write PDF

20:05:36 Load Test from Xlsx file 36writeLineChart1.xlsx
20:05:36 Iterate worksheets looking at the charts
20:05:36 Worksheet: Data
20:05:36 chart1 - "Sales"
20:05:36
20:05:36 lineChart

Fatal error: Uncaught Error: Class 'Mpdf\Mpdf' not found in /var/www/u0381365/data/www/kgnic.ru/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Pdf/Mpdf.php:20 Stack trace: #0 /var/www/u0381365/data/www/kgnic.ru/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Pdf/Mpdf.php(69): PhpOffice\PhpSpreadsheet\Writer\Pdf\Mpdf->createExternalWriterInstance(Array) #1 /var/www/u0381365/data/www/kgnic.ru/vendor/phpoffice/phpspreadsheet/samples/Chart/32_Chart_read_write_PDF.php(86): PhpOffice\PhpSpreadsheet\Writer\Pdf\Mpdf->save('/tmp/phpspreads...') #2 {main} thrown in /var/www/u0381365/data/www/kgnic.ru/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Pdf/Mpdf.php on line 20