Fatal error: Uncaught Error: Class 'chillerlan\QRCodeTest\Output\QROutputTestAbstract' not found in /var/www/html/sigo-laravel/vendor/chillerlan/php-qrcode/tests/Output/QRImageTest.php:18 Stack trace: #0 {main} thrown in /var/www/html/sigo-laravel/vendor/chillerlan/php-qrcode/tests/Output/QRImageTest.php on line 18