Fatal error: Uncaught Error: Class "SebastianBergmann\Diff\Output\AbstractChunkOutputBuilder" not found in /home/alkhalaffamily/public_html/new_qasa/vendor/sebastian/diff/src/Output/UnifiedDiffOutputBuilder.php:18 Stack trace: #0 {main} thrown in /home/alkhalaffamily/public_html/new_qasa/vendor/sebastian/diff/src/Output/UnifiedDiffOutputBuilder.php on line 18