( ! ) Fatal error: Class 'IXR_Client' not found in C:\wamp64\www\site\wordpress\wp-includes\IXR\class-IXR-clientmulticall.php on line 9
Call Stack
#	Time	Memory	Function	Location
1	0.0004	243664	{main}( )	...\class-IXR-clientmulticall.php:0