[Plugin: WordPress Mobile Pack] Situation with admin-ajax.php

Because of how wpmp_switcher.php treats an admin page, it overwrites any call to admin-ajax.php.

To solved this situation change line 84 from wpmp_switcher.php with this

if ( ( is_admin() || strtolower(substr($_SERVER['REQUEST_URI'], -9))=='/wp-admin' ) && ( strpos( $_SERVER['REQUEST_URI'], 'admin-ajax.php' )===false ) ) {

Hope this will help.

http://ww.wp.xz.cn/extend/plugins/wordpress-mobile-pack/