Fatal error: Uncaught Error: Class "FPDF" not found in /home/karendei/public_html/test.karenderia.ir/vendor/setasign/fpdi/src/FpdfTpl.php:18 Stack trace: #0 {main} thrown in /home/karendei/public_html/test.karenderia.ir/vendor/setasign/fpdi/src/FpdfTpl.php on line 18