Fatal error: Uncaught Error: Class "IXR_Server" not found in C:\Program Files\Apache Group\Apache2\htdocs\stone-quarries\wordpress\wp-includes\IXR\class-IXR-introspectionserver.php:9 Stack trace: #0 {main} thrown in C:\Program Files\Apache Group\Apache2\htdocs\stone-quarries\wordpress\wp-includes\IXR\class-IXR-introspectionserver.php on line 9