function.php fix from blog no longer working

Hey Marcel,

Really love the plugin. Thanks so much. Up until a recent update the fix you outline in your blog for changing the store url was working beautifully:

http://www.blogtogo.de/wp-appbox-tradedoubler-id-und-store-url-updatesicher-aendern/

After an update to the parent theme, the function is no longer working. The itunes appstore links are now pointing to the /de/ url even though I’ve added the funtion to the functions.php file of my child theme:

//WP-Appbox: Appple AppStore URL
function wpappbox_get_appstore_url() {
return(‘https://itunes.apple.com/lookup?id={APPID}’);
}

Can you think of why this is happening?

Thanks for your time,

Matt

http://ww.wp.xz.cn/plugins/wp-appbox/