ERROR info

Completely ignored arguments: [--nativeLauncherVersion, 286]
[13:07:49] [Client thread/INFO]: Setting user: FallingEmeralds
[13:07:49] [Client thread/INFO]: (Session ID is token:7de60afde1184cfcba33643532d67ca3:92cca98480bb4d948671a85cf581718a)
[13:07:51] [Client thread/INFO]: LWJGL Version: 2.9.1
[13:07:51] [Client thread/INFO]: Reloading ResourceManager: Default
[13:07:52] [Sound Library Loader/INFO]: Starting up SoundSystem...
[13:07:52] [Thread-6/INFO]: Initializing LWJGL OpenAL
[13:07:52] [Thread-6/INFO]: (The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org)
[13:07:53] [Thread-6/INFO]: OpenAL initialized.
[13:07:53] [Sound Library Loader/INFO]: Sound engine started
[13:07:55] [Client thread/INFO]: Created: 512x512 textures-atlas
[13:08:01] [Client thread/INFO]: Connecting to play.opblocks.net., 25565
[13:08:01] Server Connector #1/ERROR: Couldn't connect to server
java.lang.NullPointerException: group
at io.netty.bootstrap.AbstractBootstrap.group(AbstractBootstrap.java:79) ~[netty-all-4.0.15.Final.jar:4.0.15.Final]
at gr.a(SourceFile:220) ~[1.8.jar:?]
at bwc.run(SourceFile:59) [1.8.jar:?]