I'm using WordPress 3.5 and YouTube Sidebar Widget 1.3.2.
The plugin display service is unavailable. Why have I encountered service unavailable? The YouTube video is set to be public and embeddable.
The plugin uses cURl direkt instead of WordPress' built in HTTP class. If your sever does not support cURL, the plugin can not work and you got this message. Deinstall the plugin and use another one. Or replace the
Open the plugin file