Youtube doesn't support gdata API information anymore.
This causes that players with youtube API support won't be able to stream youtube videos anymore.
Same is with Nuevoplayer and offered youtube plugin.

However I was already able to analyze new API already, still experiment with it.
Seems not everything offered by new API is working yet, but it was not a big problem to set same functionality as it was before.
So on Nuevolab demo website you can see updated Nuevoplayer, streaming youtube well again.

Update player file is available to download
http://clipshare.nuevolab.com/skins
You will have to find and use your login/pass to access download.
If you cannot find - you will have to email us, and be patient with our reply.

Thanks.