[Plugin: Automatic Youtube Video Posts Plugin] don't found

i have 1subdomains and 1 domain with 2 wp blogs and 2 plugins automatic youtube videos on same server, but in the subdomains the plugin doesn’t work good. when i import new channels, the old channel have a problem. in the admin panel are perfect, but on the website are as vanished.

http://wordpress.org/extend/plugins/automatic-youtube-video-posts/