Fatal error: Uncaught Error: Interface "SebastianBergmann\Diff\LongestCommonSubsequenceCalculator" not found in /users/danielstruebig/www/familyhelper/vendor/sebastian/diff/src/MemoryEfficientLongestCommonSubsequenceCalculator.php:19 Stack trace: #0 {main} thrown in /users/danielstruebig/www/familyhelper/vendor/sebastian/diff/src/MemoryEfficientLongestCommonSubsequenceCalculator.php on line 19