Games : When using Cauldron to try and run a server, I get the same error

    [09:21:04 INFO]: Forge Mod Loader has identified 71 mods to load
[09:21:04 INFO]: Found mod(s) [FoodPlus] containing declared API package thaumcr
aft.api (owned by Thaumcraft) without associated API reference
[09:21:04 INFO]: Found mod(s) [catwalkmod] containing declared API package build
craft.api.tools (owned by BuildCraftAPI|core) without associated API reference
[09:21:05 ERROR]: Encountered an unexpected exception
java.lang.NullPointerException
        at com.google.common.collect.Maps.uniqueIndex(Maps.java:1140) ~[minecraf
t_server.1.7.10.jar:?]
        at cpw.mods.fml.common.Loader.sortModList(Loader.java:216) ~[Loader.clas
s:git-Cauldron-MCPC-Plus-1.7.10-1.1207.01.198]
        at cpw.mods.fml.common.Loader.loadMods(Loader.java:472) ~[Loader.class:g
it-Cauldron-MCPC-Plus-1.7.10-1.1207.01.198]
        at cpw.mods.fml.server.FMLServerHandler.beginServerLoading(FMLServerHand
ler.java:87) ~[FMLServerHandler.class:git-Cauldron-MCPC-Plus-1.7.10-1.1207.01.19
8]
        at cpw.mods.fml.common.FMLCommonHandler.onServerStart(FMLCommonHandler.j
ava:317) ~[FMLCommonHandler.class:git-Cauldron-MCPC-Plus-1.7.10-1.1207.01.198]
        at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(Dedicated
Server.java:170) ~[lt.class:?]
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:620) [M
inecraftServer.class:?]
        at java.lang.Thread.run(Unknown Source) [?:1.7.0_10]
[09:21:05 ERROR]: This crash report has been saved to: C:\Users\lucy\Desktop\Ser
vers\Jurassic World 1.7.10\.\crash-reports\crash-2015-03-31_09.21.05-server.txt
[09:21:05 WARN]: Can't revert to frozen GameData state without freezing first.
[09:21:05 INFO]: Applying holder lookups
[09:21:05 INFO]: Holder lookups applied
[09:21:05 ERROR]: Could not dispatch event: cpw.mods.fml.common.LoadController@6
aaf6af2 to public void cpw.mods.fml.common.LoadController.propogateStateMessage(
cpw.mods.fml.common.event.FMLEvent)
[09:21:05 INFO]: The state engine was in incorrect state CONSTRUCTING and forced
 into state SERVER_STOPPED. Errors may have been discarded.

C:\Users\lucy\Desktop\Servers\Jurassic World 1.7.10>pause

Any help? I don't know much about computers, and am very confused.