Fatal error: Uncaught Error: Class 'SebastianBergmann\Comparator\ObjectComparator' not found in /home/clienti2020/public_html/novaballet.it/vendor/phpspec/prophecy/src/Prophecy/Comparator/ProphecyComparator.php:17 Stack trace: #0 {main} thrown in /home/clienti2020/public_html/novaballet.it/vendor/phpspec/prophecy/src/Prophecy/Comparator/ProphecyComparator.php on line 17