'Shutting Down internal server'

[roaringtiger1717]

I've been getting this bug a few minutes after i log into my world it gives me this report:

2013-05-03 15:56:18 [INFO] [STDERR] t: Rendering screen
2013-05-03 15:56:18 [INFO] [STDERR]at ban.b(EntityRenderer.java:1013)
2013-05-03 15:56:18 [INFO] [STDERR]at net.minecraft.client.Minecraft.J(Minecraft.java:884)
2013-05-03 15:56:18 [INFO] [STDERR]at net.minecraft.client.Minecraft.run(Minecraft.java:773)
2013-05-03 15:56:18 [INFO] [STDERR]at java.lang.Thread.run(Unknown Source)
2013-05-03 15:56:18 [INFO] [STDERR] Caused by: java.lang.StringIndexOutOfBoundsException: String index out of range: -1
2013-05-03 15:56:18 [INFO] [STDERR]at java.lang.String.substring(Unknown Source)
2013-05-03 15:56:18 [INFO] [STDERR]at codechicken.nei.forge.GuiContainerManager.getStringWidthNoColours(GuiContainerManager.java:135)
2013-05-03 15:56:18 [INFO] [STDERR]at codechicken.nei.forge.GuiContainerManager.getStringWidth(GuiContainerManager.java:124)
2013-05-03 15:56:18 [INFO] [STDERR]at codechicken.nei.TextField.draw(TextField.java:50)
2013-05-03 15:56:18 [INFO] [STDERR]at codechicken.nei.LayoutManager.renderObjects(LayoutManager.java:221)
2013-05-03 15:56:18 [INFO] [STDERR]at codechicken.nei.forge.GuiContainerManager.renderObjects(GuiContainerManager.java:514)
2013-05-03 15:56:18 [INFO] [STDERR]at avf.a(GuiContainer.java:146)
2013-05-03 15:56:18 [INFO] [STDERR]at avv.a(SourceFile:31)
2013-05-03 15:56:18 [INFO] [STDERR]at avz.a(SourceFile:48)
2013-05-03 15:56:18 [INFO] [STDERR]at ban.b(EntityRenderer.java:1004)
2013-05-03 15:56:18 [INFO] [STDERR]... 3 more
2013-05-03 15:56:28 [INFO] [STDOUT] Stopping!
2013-05-03 15:56:28 [INFO] [STDOUT] SoundSystem shutting down...
2013-05-03 15:56:29 [INFO] [STDOUT] Author: Paul Lamb, www.paulscode.com

 

[Ashzification]

Please follow these steps exactly: http://desk.feed-the-beast.com/index.php?/Knowledgebase/Article/View/9/0/basic-troubleshooting
This is to rule out any issues with your client setup.

If you continue to have trouble, please post your complete client-side console log in debug-mode to pastebin.com and link your paste URL here.
To find your logs: http://desk.feed-the-beast.com/inde...29/1/what-log-do-you-need-where-can-i-find-it