getting errors on site when plugin activated

Replies: 0

I’ve just started using Create, and am getting the following error across the top of my site:

Warning: call_user_func_array() expects parameter 1 to be a valid callback, class ‘WPSEO_Twitter’ not found in H:\root\home\shuri17-001\www\almostallaldi\wp-includes\class-wp-hook.php on line 286

When I deactivate the plugin, the error disappears. Any ideas?

Thanks!