Fatal error: Uncaught Error: Interface 'chillerlan\QRCode\Common\LuminanceSourceInterface' not found in C:\xampp\htdocs\vendor\chillerlan\php-qrcode\src\Common\LuminanceSourceAbstract.php:26 Stack trace: #0 {main} thrown in C:\xampp\htdocs\vendor\chillerlan\php-qrcode\src\Common\LuminanceSourceAbstract.php on line 26