Fatal error: Uncaught Error: Interface "Phpfastcache\Cluster\AggregatorInterface" not found in C:\xampp\htdocs\np\vendor\Phpfastcache\Cluster\ClusterAggregator.php:31 Stack trace: #0 {main} thrown in C:\xampp\htdocs\np\vendor\Phpfastcache\Cluster\ClusterAggregator.php on line 31