2014-01-01 19:59:27 [INFO] [STDOUT]
2014-01-01 19:59:27 [INFO] [STDOUT] Time: 01/01/14 19:59
2014-01-01 19:59:27 [INFO] [STDOUT] Description: Unexpected error
2014-01-01 19:59:27 [INFO] [STDOUT]
2014-01-01 19:59:27 [INFO] [STDOUT] java.lang.NullPointerException
2014-01-01 19:59:27 [INFO] [STDOUT] at net.minecraft.client.renderer.ItemRenderer.func_78446_a(ItemRenderer.java:600)
2014-01-01 19:59:27 [INFO] [STDOUT] at net.minecraft.client.renderer.ItemRenderer.func_78447_b(ItemRenderer.java:551)
2014-01-01 19:59:27 [INFO] [STDOUT] at net.minecraft.client.renderer.EntityRenderer.func_78476_b(EntityRenderer.java:720)
2014-01-01 19:59:27 [INFO] [STDOUT] at net.minecraft.client.renderer.EntityRenderer.func_78471_a(EntityRenderer.java:1296)
2014-01-01 19:59:27 [INFO] [STDOUT] at net.minecraft.client.renderer.EntityRenderer.func_78480_b(EntityRenderer.java:1002)
2014-01-01 19:59:27 [INFO] [STDOUT] at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:946)
2014-01-01 19:59:27 [INFO] [STDOUT] at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:838)
2014-01-01 19:59:27 [INFO] [STDOUT] at net.minecraft.client.main.Main.main(SourceFile:101)
2014-01-01 19:59:27 [INFO] [STDOUT] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
2014-01-01 19:59:27 [INFO] [STDOUT] at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
2014-01-01 19:59:27 [INFO] [STDOUT] at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
2014-01-01 19:59:27 [INFO] [STDOUT] at java.lang.reflect.Method.invoke(Unknown Source)
2014-01-01 19:59:27 [INFO] [STDOUT] at net.minecraft.launchwrapper.Launch.launch(Launch.java:131)
2014-01-01 19:59:27 [INFO] [STDOUT] at net.minecraft.launchwrapper.Launch.main(Launch.java:27)
2014-01-01 19:59:27 [INFO] [STDOUT]
2014-01-01 19:59:27 [INFO] [STDOUT]
2014-01-01 19:59:27 [INFO] [STDOUT] A detailed walkthrough of the error, its code path and all known details is as follows:
2014-01-01 19:59:27 [INFO] [STDOUT] ---------------------------------------------------------------------------------------
2014-01-01 19:59:27 [INFO] [STDOUT]
2014-01-01 19:59:27 [INFO] [STDOUT] -- Head --
2014-01-01 19:59:27 [INFO] [STDOUT] Stacktrace:
2014-01-01 19:59:27 [INFO] [STDOUT] at net.minecraft.client.renderer.ItemRenderer.func_78446_a(ItemRenderer.java:600)
2014-01-01 19:59:27 [INFO] [STDOUT] at net.minecraft.client.renderer.ItemRenderer.func_78447_b(ItemRenderer.java:551)
2014-01-01 19:59:27 [INFO] [STDOUT] at net.minecraft.client.renderer.EntityRenderer.func_78476_b(EntityRenderer.java:720)
2014-01-01 19:59:27 [INFO] [STDOUT] at net.minecraft.client.renderer.EntityRenderer.func_78471_a(EntityRenderer.java:1296)[/code]

Whenever I try and sync on this server, I get the above error. my other storage is underground and whenever it attempts to sync, the launcher and minecraft crash. When I log in, I am at the place I attempted to sync to with the sync screen up again. If I attempt to sync from that location, I crash again. I am using the "Monster" FTB Pack, beta version 1.0.2

You have to blame whichever mod is returning a null for getIcon, whichever block is between your base and the overworld. It's crashing when Minecraft tries to identify their icon. Not the fault of this mod, but a fault of another mod brought to attention by this one, so report it to the other mod if you figure out which one it is.

thanks for the info ichun :D also, Amazing mod!