Fatal error: Uncaught setasign\Fpdi\PdfParser\PdfParserException: Unable to find PDF file header. in /home/faizullatip.com/invois.faizullatip.com/libs/fpdi/src/PdfParser/PdfParser.php:131 Stack trace: #0 /home/faizullatip.com/invois.faizullatip.com/libs/fpdi/src/PdfParser/PdfParser.php(172): setasign\Fpdi\PdfParser\PdfParser->resolveFileHeader() #1 /home/faizullatip.com/invois.faizullatip.com/libs/fpdi/src/PdfReader/PdfReader.php(84): setasign\Fpdi\PdfParser\PdfParser->getPdfVersion() #2 /home/faizullatip.com/invois.faizullatip.com/libs/fpdi/src/FpdiTrait.php(237): setasign\Fpdi\PdfReader\PdfReader->getPdfVersion() #3 /home/faizullatip.com/invois.faizullatip.com/libs/fpdi/src/FpdiTrait.php(216): setasign\Fpdi\Fpdi->setSourceFileWithParserParams() #4 /home/faizullatip.com/invois.faizullatip.com/pdf_generator.php(80): setasign\Fpdi\Fpdi->setSourceFile() #5 {main} thrown in /home/faizullatip.com/invois.faizullatip.com/libs/fpdi/src/PdfParser/PdfParser.php on line 131