Warnings when using widget

Hi,
I really like your weather plugin… however when I added the widget version, I am getting the errors below when I try to load the page.

Any ideas?

Warning: file_get_contents() [function.file-get-contents]: URL file-access is disabled in the server configuration in /homepages/45/d231223501/htdocs/5-aurora/wp-content/plugins/beautiful-yahoo-weather/inc/shortcode.php on line 21

Warning: file_get_contents(https://query.yahooapis.com/v1/public/yql?q=select+%2A+from+weather.forecast+where+location+%3D+%2715022410%27+and+u+%3D+%27c%27&rnd=20141156&format=json) [function.file-get-contents]: failed to open stream: no suitable wrapper could be found in /homepages/45/d231223501/htdocs/5-aurora/wp-content/plugins/beautiful-yahoo-weather/inc/shortcode.php on line 21

Thank you

https://www.ads-software.com/plugins/beautiful-yahoo-weather/