Playlist not working now

Hi, This is a very cool plugins, great and easy to use, but now I dont know why my gallery not working anymore, I’m using playlist for my gallery and now an error message showing up
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An error was found while updating your style.

YouTube playlist – http://www.youtube.com/playlist?list=PLD75CF0B999C4027D youtube playlist does not exist.
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The playlist working fine before in this plugin, and if you paste the playlist url in browser, it can show you the exact playlist from youtube.
as you can see here http://21ipcamera.com/
Please help me fix this

http://ww.wp.xz.cn/plugins/sliding-youtube-gallery/