Fatal error: Uncaught Error: Interface "Endroid\QrCode\Writer\WriterInterface" not found in D:\xampp\htdocs\SSWPOS\vendor\endroid\qr-code\src\Writer\PdfWriter.php:14 Stack trace: #0 {main} thrown in D:\xampp\htdocs\SSWPOS\vendor\endroid\qr-code\src\Writer\PdfWriter.php on line 14