Fatal error: Uncaught Error: Class "setasign\Fpdi\FpdiException" not found in C:\xampp\htdocs\xlsss\vendorpdf - Copy\setasign\fpdi\src\PdfParser\PdfParserException.php:18 Stack trace: #0 {main} thrown in C:\xampp\htdocs\xlsss\vendorpdf - Copy\setasign\fpdi\src\PdfParser\PdfParserException.php on line 18