Fatal error: Uncaught Error: Class "Zxing\ReaderException" not found in /home/app/htdocs/v2.2.3/vendor/khanamiryan/qrcode-detector-decoder/lib/ChecksumException.php:26 Stack trace: #0 {main} thrown in /home/app/htdocs/v2.2.3/vendor/khanamiryan/qrcode-detector-decoder/lib/ChecksumException.php on line 26