Fatal error: Uncaught Error: Interface "SebastianBergmann\Diff\LongestCommonSubsequenceCalculator" not found in /home/appdemo/public_html/samena-mailer/vendor/sebastian/diff/src/TimeEfficientLongestCommonSubsequenceCalculator.php:17 Stack trace: #0 {main} thrown in /home/appdemo/public_html/samena-mailer/vendor/sebastian/diff/src/TimeEfficientLongestCommonSubsequenceCalculator.php on line 17