Remove error_reporting(0) urgently

I just spent more than one hour debugging a website in order to find out why I wasn’t getting a php fatal error, even with WP_DEBUG set to true.

Your plugin is setting error_reporting(0) here: https://plugins.trac.www.ads-software.com/browser/sliding-widgets/trunk/sliding-widgets.php#L16

You should NOT, for any reason, override the error reporting settings. This line should be removed ASAP.

You should fix any php notices or warnings that your plugin generates and NOT disable error_reporting.