Fatal error: Uncaught Error: Class 'IXR_Server' not found in /home/theskillsbooster/public_html/wp-includes/class-wp-xmlrpc-server.php:23
Stack trace:
#0 {main}
thrown in /home/theskillsbooster/public_html/wp-includes/class-wp-xmlrpc-server.php on line 23