Fatal error: Uncaught Error: Class "SMW\Elastic\Connection\Client" not found in /var/www/html/extensions/SemanticMediaWiki/src/Elastic/Connection/DummyClient.php:18 Stack trace: #0 {main} thrown in /var/www/html/extensions/SemanticMediaWiki/src/Elastic/Connection/DummyClient.php on line 18