Fatal error: Uncaught Error: Class "LuceneExplain\Explain" not found in /var/www/html/w/vendor/wikimedia/lucene-explain-parser/src/FieldFunctionQueryExplain.php:4 Stack trace: #0 {main} thrown in /var/www/html/w/vendor/wikimedia/lucene-explain-parser/src/FieldFunctionQueryExplain.php on line 4