Fatal error: Uncaught Error: Class 'chillerlan\QRCodeTest\Output\QROutputTestAbstract' not found in /var/www/html/sigo-laravel/vendor/chillerlan/php-qrcode/tests/Output/QRStringTest.php:17 Stack trace: #0 {main} thrown in /var/www/html/sigo-laravel/vendor/chillerlan/php-qrcode/tests/Output/QRStringTest.php on line 17