Fatal error: Uncaught setasign\Fpdi\PdfParser\PdfParserException: Unable to find PDF file header. in /var/www/vhosts/pamenskyu/public_html/vendor/setasign/fpdi/src/PdfParser/PdfParser.php:130 Stack trace: #0 /var/www/vhosts/pamenskyu/public_html/vendor/setasign/fpdi/src/PdfParser/PdfParser.php(171): setasign\Fpdi\PdfParser\PdfParser->resolveFileHeader() #1 /var/www/vhosts/pamenskyu/public_html/vendor/setasign/fpdi/src/PdfReader/PdfReader.php(84): setasign\Fpdi\PdfParser\PdfParser->getPdfVersion() #2 /var/www/vhosts/pamenskyu/public_html/vendor/setasign/fpdi/src/FpdiTrait.php(217): setasign\Fpdi\PdfReader\PdfReader->getPdfVersion() #3 /var/www/vhosts/pamenskyu/public_html/core/MpdfExt.php(26): Mpdf\Mpdf->setSourceFile('/var/www/vhosts...') #4 /var/www/vhosts/pamenskyu/public_html/controller/Products.php(52): WEB\core\MpdfExt->mergePDFFiles(Array, '/var/www/vhosts...') #5 /var/www/vhosts/pamenskyu/public_html/controller/Products.php(59): WEB\controller\Products->mergeProductPdf('667') #6 /var/www/vhosts/pamenskyu/public_htm in /var/www/vhosts/pamenskyu/public_html/vendor/setasign/fpdi/src/PdfParser/PdfParser.php on line 130