Fatal error: Uncaught Error: Interface "chillerlan\QRCode\Output\QROutputInterface" not found in C:\Apache24\htdocs\cms_upgrade\vendor\chillerlan\php-qrcode\src\Output\QROutputAbstract.php:23 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\cms_upgrade\vendor\chillerlan\php-qrcode\src\Output\QROutputAbstract.php on line 23