Update, errors have been resolved(css plugin was causing errors, used different one so no errors in server log at all now). However, could anyone please tell me if this plugin can at all be used with WPEngine over multiple non-cached pages? I’ve asked them, but I can’t seem to get a straight answer.
Many Thanks
Fixed.
I had to place $myvar=wp_session_start();
before $wp_session = WP_Session::get_instance();