我已经很久进不了游戏了。致命错误，请查看

I, [2014-02-11T23:40:28.770281 #1708] INFO – main: 初始化成功
I, [2014-02-11T23:40:31.103281 #1708] INFO – 下载更新-服务器回传: []
I, [2014-02-11T23:40:31.104281 #1708] INFO – 下载更新-解析后: []
I, [2014-02-11T23:40:40.007281 #1708] INFO – 读取头像: https://my-card.in/users/foreversos%40my-card.in.png 1
I, [2014-02-11T23:40:40.157281 #1708] INFO – 下载卡组: https://my-card.in/decks/?user=foreversos%40my-card.in 1
F, [2014-02-11T23:40:41.463281 #1708] FATAL – : #<NoMethodError: undefined method split' for nil:NilClass> D:/Game/Other/mycard/lib/ygocore/game.rb:291:in write_system_conf’
D:/Game/Other/mycard/lib/ygocore/game.rb:343:in run_ygocore' lib/ygocore/scene_lobby.rb:3:in join’
D:/Game/Other/mycard/lib/scene_lobby.rb:79:in handle_game' D:/Game/Other/mycard/lib/scene.rb:98:in update’
D:/Game/Other/mycard/lib/scene_lobby.rb:103:in update' D:/Game/Other/mycard/lib/scene.rb:29:in main’
lib/main.rb:127:in <main>' I, [2014-02-11T23:40:41.530281 #1708] INFO -- : websocket连接断开 E, [2014-02-11T23:40:41.534281 #1708] ERROR -- 致命错误: ygocore: 网络连接中断.1 ["D:/Game/Other/mycard/ruby/lib/ruby/2.0.0/logger.rb:376:in add’", “D:/Game/Other/mycard/ruby/lib/ruby/2.0.0/logger.rb:456:in error'", "D:/Game/Other/mycard/lib/game_event.rb:189:in initialize’”, “D:/Game/Other/mycard/lib/ygocore/game.rb:113:in new'", "D:/Game/Other/mycard/lib/ygocore/game.rb:113:in block (4 levels) in connect’”, “D:/Game/Other/mycard/lib/ygocore/game.rb:538:in call'", "D:/Game/Other/mycard/lib/ygocore/game.rb:538:in block (2 levels) in class:Base’”, “D:/Game/Other/mycard/lib/ygocore/game.rb:518:in unbind'", "D:/Game/Other/mycard/ruby/lib/ruby/gems/2.0.0/gems/eventmachine-1.0.3-x86-mingw32/lib/eventmachine.rb:1440:in event_callback’”, “D:/Game/Other/mycard/ruby/lib/ruby/gems/2.0.0/gems/eventmachine-1.0.3-x86-mingw32/lib/eventmachine.rb:194:in release_machine'", "D:/Game/Other/mycard/ruby/lib/ruby/gems/2.0.0/gems/eventmachine-1.0.3-x86-mingw32/lib/eventmachine.rb:194:in ensure in run’”, “D:/Game/Other/mycard/ruby/lib/ruby/gems/2.0.0/gems/eventmachine-1.0.3-x86-mingw32/lib/eventmachine.rb:218:in run'", "D:/Game/Other/mycard/lib/ygocore/game.rb:97:in block in connect’”]