Fatal error: Uncaught Error: Class "ClickHouseDB\Cluster" not found in /home/ramy3/public_html/ws/vendor/smi2/phpclickhouse/example/cluster/cluster_06_truncate_table.php:10 Stack trace: #0 {main} thrown in /home/ramy3/public_html/ws/vendor/smi2/phpclickhouse/example/cluster/cluster_06_truncate_table.php on line 10