Fatal error: Uncaught Error: Class "chillerlan\QRCode\Output\QROutputAbstract" not found in /home/facturacionserco/public_html/vendor/chillerlan/php-qrcode/src/Output/QRMarkup.php:18 Stack trace: #0 {main} thrown in /home/facturacionserco/public_html/vendor/chillerlan/php-qrcode/src/Output/QRMarkup.php on line 18