Fatal error: Uncaught Error: Class "chillerlan\QRCodeTest\Output\QROutputTestAbstract" not found in /var/www/html/servidor-laravel/vendor/chillerlan/php-qrcode/tests/Output/QRMarkupTest.php:21 Stack trace: #0 {main} thrown in /var/www/html/servidor-laravel/vendor/chillerlan/php-qrcode/tests/Output/QRMarkupTest.php on line 21