Fatal error: Uncaught Error: Class 'IXR_Client' not found in /home/wmichal67/public_html/lekcjatest-1v-mw/wp-includes/class-wp-http-ixr-client.php:9
Stack trace:
#0 {main}
thrown in /home/wmichal67/public_html/lekcjatest-1v-mw/wp-includes/class-wp-http-ixr-client.php on line 9