Fatal error: Uncaught Error: Class "ClickHouseDB\Client" not found in /home/ramy3/public_html/ws/vendor/smi2/phpclickhouse/example/exam17_sample_data_inthash.php:10 Stack trace: #0 {main} thrown in /home/ramy3/public_html/ws/vendor/smi2/phpclickhouse/example/exam17_sample_data_inthash.php on line 10