Fatal error: Uncaught Error: Interface 'SebastianBergmann\Diff\LongestCommonSubsequenceCalculator' not found in /home/diligence/public_html/sigma-power/vendor/sebastian/diff/src/MemoryEfficientLongestCommonSubsequenceCalculator.php:20 Stack trace: #0 {main} thrown in /home/diligence/public_html/sigma-power/vendor/sebastian/diff/src/MemoryEfficientLongestCommonSubsequenceCalculator.php on line 20