Fatal error: Uncaught Error: Interface "chillerlan\QRCode\Output\QROutputInterface" not found in D:\xampp\htdocs\stream.howto.co.ug\chillerlan\QRCode\Output\QROutputAbstract.php:23 Stack trace: #0 {main} thrown in D:\xampp\htdocs\stream.howto.co.ug\chillerlan\QRCode\Output\QROutputAbstract.php on line 23