Fatal error: Uncaught Error: Class 'IXR_Server' not found in C:\xampp\htdocs\stopcovid.anamai.moph.go.th\wp-includes\class-wp-xmlrpc-server.php:23 Stack trace: #0 {main} thrown in C:\xampp\htdocs\stopcovid.anamai.moph.go.th\wp-includes\class-wp-xmlrpc-server.php on line 23