gThat Error

2013-04-09 18:43:33 [SEVERE] java.io.IOException: Server returned HTTP response code: 400 for URL: https://www.googleapis.com/urlshortener/v1/url
2013-04-09 18:43:33 [SEVERE]    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1403)
2013-04-09 18:43:33 [SEVERE]    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:254)
2013-04-09 18:43:33 [SEVERE]    at org.royaldev.googlethat.listeners.LinkListener.getShortLink(LinkListener.java:91)
2013-04-09 18:43:33 [SEVERE]    at org.royaldev.googlethat.listeners.LinkListener.shortenLinks(LinkListener.java:137)
2013-04-09 18:43:33 [SEVERE]    at sun.reflect.GeneratedMethodAccessor125.invoke(Unknown Source)
2013-04-09 18:43:33 [SEVERE]    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
2013-04-09 18:43:33 [SEVERE]    at java.lang.reflect.Method.invoke(Method.java:616)
2013-04-09 18:43:33 [SEVERE]    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:425)
2013-04-09 18:43:33 [SEVERE]    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
2013-04-09 18:43:33 [SEVERE]    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
2013-04-09 18:43:33 [SEVERE]    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:459)
2013-04-09 18:43:33 [SEVERE]    at net.minecraft.server.v1_5_R2.PlayerConnection.chat(PlayerConnection.java:889)
2013-04-09 18:43:33 [SEVERE]    at net.minecraft.server.v1_5_R2.PlayerConnection.a(PlayerConnection.java:841)
2013-04-09 18:43:33 [SEVERE]    at net.minecraft.server.v1_5_R2.Packet3Chat.handle(Packet3Chat.java:44)
2013-04-09 18:43:33 [SEVERE]    at net.minecraft.server.v1_5_R2.NetworkManager.i(NetworkManager.java:210)
2013-04-09 18:43:33 [SEVERE]    at net.minecraft.server.v1_5_R2.NetworkManager.c(NetworkManager.java:346)
2013-04-09 18:43:33 [SEVERE]    at net.minecraft.server.v1_5_R2.NetworkReaderThread.run(SourceFile:94)