Fatal error: Uncaught Error: Class "FPDF" not found in C:\AppServ\Apache\2.4.69\htdocs\isha_security\vendor\setasign\fpdi\src\FpdfTpl.php:18 Stack trace: #0 {main} thrown in C:\AppServ\Apache\2.4.69\htdocs\isha_security\vendor\setasign\fpdi\src\FpdfTpl.php on line 18