Fatal error: Uncaught Error: Class "FPDF" not found in C:\xampp\htdocs\crop_db\libs\mpdf\vendor\setasign\fpdi\fpdi_bridge.php:23 Stack trace: #0 C:\xampp\htdocs\crop_db\libs\mpdf\vendor\setasign\fpdi\fpdf_tpl.php(12): require_once() #1 C:\xampp\htdocs\crop_db\libs\mpdf\vendor\setasign\fpdi\fpdi.php(12): require_once('C:\\xampp\\htdocs...') #2 {main} thrown in C:\xampp\htdocs\crop_db\libs\mpdf\vendor\setasign\fpdi\fpdi_bridge.php on line 23