Fatal error: Uncaught Error: Class "Elastica\Aggregation\AbstractAggregation" not found in /var/www/html/w/vendor/ruflin/elastica/src/Aggregation/AbstractSimpleAggregation.php:7 Stack trace: #0 {main} thrown in /var/www/html/w/vendor/ruflin/elastica/src/Aggregation/AbstractSimpleAggregation.php on line 7