Fatal error: Uncaught Error: Class 'chillerlan\QRCode\Output\QROutputAbstract' not found in /home/itscm/dev.its.cm/its_core_service/src/controllers/vendor/chillerlan/php-qrcode/examples/MyCustomOutput.php:19 Stack trace: #0 {main} thrown in /home/itscm/dev.its.cm/its_core_service/src/controllers/vendor/chillerlan/php-qrcode/examples/MyCustomOutput.php on line 19