Game keeps crashing only on old game, new games I make seem to be working

[Stormerman2]

My game i've playing for a while started crashing after a few seconds. I tried starting a new game, and it seems to work fine.

  Minecraft has crashed!      
  ----------------------      

Minecraft has stopped running because it encountered a problem; Exception in server tick loop This error has been saved to C:\Users\Thomas\Desktop\Minecraft\FTBBETAA\minecraft\crash-reports\crash-2012-12-08_12.36.06-server.txt for your convenience. Please include a copy of this file if you report this crash to anyone.

--- BEGIN ERROR REPORT e0247a8d -------- Generated 12/8/12 12:36 PM

• Minecraft Version: 1.4.2
• Operating System: Windows 7 (x86) version 6.1
• Java Version: 1.7.0_09, Oracle Corporation
• Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
• Memory: 111107472 bytes (105 MB) / 567246848 bytes (540 MB) up to 1037959168 bytes (989 MB)
• JVM Flags: 2 total; -Xms256M -Xmx1024M
• AABB Pool Size: 3104 (173824 bytes; 0 MB) allocated, 2882 (161392 bytes; 0 MB) used
• FML: MCP v7.19 FML v4.2.18.433 Minecraft Forge 6.0.1.355 Feed The Beast Mod Pack 37 mods loaded, 37 mods active mcp Minecraft Coder Pack Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available FML Forge Mod Loader Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available Forge Minecraft Forge Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available mod_CodeChickenCore CodeChicken Core Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available mod_NotEnoughItems Not Enough Items Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available IC2 IndustrialCraft 2 Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available AdvancedMachines [IC2 Advanced Machines Addon](AdvancedMachines 4.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available AdvancedSolarPanel Advanced Solar Panels Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available BuildCraft|Core BuildCraft Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available BuildCraft|Energy BC Energy Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available BuildCraft|Transport BC Transport Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available BuildCraft|Builders BC Builders Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available BuildCraft|Factory BC Factory Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available BuildCraft|Silicon BC Silicon Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available ComputerCraft ComputerCraft Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available CCTurtle ComputerCraft Turtles Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available EnderStorage [EnderStorage](EnderStorage 1.2.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available ExtrabiomesXL ExtrabiomesXL Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available factorization Factorization Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available Forestry Forestry for Minecraft Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available ForgeIRC ForgeIRC Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available GraviSuite Gravitation Suite Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available IC2NuclearControl Nuclear Control Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available mod_InvTweaks Inventory Tweaks Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available IronChest Iron Chest Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available ModularForceFieldSystem Modular ForceField System V2 Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available Mystcraft Mystcraft Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available ObsidiPlates Obsidian Pressure Plates Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available PortalGun PortalGun Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available Railcraft Railcraft Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available mod_ReiMinimap mod_ReiMinimap Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available StevesCarts Steve's Carts Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available ThermalExpansion|Core Thermal Expansion Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available ThermalExpansion|Factory Factory Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available ThermalExpansion|Energy Energy Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available TwilightForest The Twilight Forest Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available GregTech_Addon GregTech-Addon Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available
• Is Modded: Definitely; 'forge,fml'
• Profiler Position: N/A (disabled)
• Vec3 Pool Size: 865 (48440 bytes; 0 MB) allocated, 840 (47040 bytes; 0 MB) used
• Player Count: 1 / 8; [ih['Stormerman2'/23899, l='Testing FTB', x=885.09, y=119.00, z=224.53]]
• World Testing FTB Entities: 0 total; []
• World Testing FTB Players: 0 total; []
• World Testing FTB Chunk Stats: ServerChunkCache: 0 Drop: 0
• Type: Integrated Server

java.lang.NullPointerException at ic2.advancedmachines.common.TileEntityAdvancedMachine.operate(TileEntityAdvancedMachine.java:210) at ic2.advancedmachines.common.TileEntityAdvancedMachine.g(TileEntityAdvancedMachine.java:96) at xe.h(World.java:2022) at ie.h(WorldServer.java:463) at net.minecraft.server.MinecraftServer.r(MinecraftServer.java:654) at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:590) at bcb.q(IntegratedServer.java:110) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:497) at fp.run(SourceFile:818) --- END ERROR REPORT 6a9b40dc ----------

[unv-annihilator]

Please report mod pack related issues to the www.feed-the-beast.com forums.