Fatal error: Uncaught Error: Class 'TCPDF' not found in C:\xampp\htdocs\admin\vendor\setasign\fpdi\src\Tcpdf\Fpdi.php:33 Stack trace: #0 {main} thrown in C:\xampp\htdocs\admin\vendor\setasign\fpdi\src\Tcpdf\Fpdi.php on line 33