Fatal error: Uncaught Error: Class 'PhpSigepFPDF' not found in C:\xampp\htdocs\ecommerce\php-sigep-master\src\PhpSigep\Pdf\ImprovedFPDF.php:7 Stack trace: #0 {main} thrown in C:\xampp\htdocs\ecommerce\php-sigep-master\src\PhpSigep\Pdf\ImprovedFPDF.php on line 7