---- Minecraft Crash Report ----
// Would you like a cupcake?
Time: 27/02/14 13:21
Description: Ticking entity
java.lang.IllegalArgumentException: n must be positive
at java.util.Random.nextInt(Unknown Source)
at mca.core.util.Utility.getRandomName(Utility.java:68)
at mca.entity.EntityVillagerAdult.(EntityVillagerAdult.java:112)
at mca.core.util.object.VillageHelper.tick(VillageHelper.java:75)
at mca.entity.EntityVillagerAdult.updateVillage(EntityVillagerAdult.java:722)
at mca.entity.EntityVillagerAdult.func_70071_h_(EntityVillagerAdult.java:283)
at net.minecraft.world.World.func_72866_a(World.java:2101)
at net.minecraft.world.WorldServer.func_72866_a(WorldServer.java:674)
at net.minecraft.world.World.func_72870_g(World.java:2064)
at net.minecraft.world.World.func_72939_s(World.java:1916)
at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:512)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:658)
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:331)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:569)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:454)
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:706)

A detailed walkthrough of the error, its code path and all known details is as follows:

-- Head --
Stacktrace:
at java.util.Random.nextInt(Unknown Source)
at mca.core.util.Utility.getRandomName(Utility.java:68)
at mca.entity.EntityVillagerAdult.(EntityVillagerAdult.java:112)
at mca.core.util.object.VillageHelper.tick(VillageHelper.java:75)
at mca.entity.EntityVillagerAdult.updateVillage(EntityVillagerAdult.java:722)
at mca.entity.EntityVillagerAdult.func_70071_h_(EntityVillagerAdult.java:283)
at net.minecraft.world.World.func_72866_a(World.java:2101)
at net.minecraft.world.WorldServer.func_72866_a(WorldServer.java:674)
at net.minecraft.world.World.func_72870_g(World.java:2064)
-- Entity being ticked --
Details:
Entity Type: mca.EntityVillagerAdult (mca.entity.EntityVillagerAdult)
Entity ID: 706
Entity Name: entity.mca.EntityVillagerAdult.name
Entity's Exact location: -147.40, 69.00, 83.70
Entity's Block location: World: (-148,69,83), Chunk: (at 12,4,3 in -10,5; contains blocks -160,0,80 to -145,255,95), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
Entity's Momentum: 0.04, -0.08, 0.00
Stacktrace:
at net.minecraft.world.World.func_72939_s(World.java:1916)
at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:512)
-- Affected level --
Details:
Level name: Adventure 1
All players: 1 total; [EntityPlayerMP['LittleSpectre'/978, l='Adventure 1', x=-155.33, y=64.00, z=83.62]]
Chunk stats: ServerChunkCache: 1053 Drop: 0
Level seed: -3177707579634392630
Level generator: ID 02 - largeBiomes, ver 0. Features enabled: true
Level generator options:
Level spawn location: World: (-24,64,-56), Chunk: (at 8,4,8 in -2,-4; contains blocks -32,0,-64 to -17,255,-49), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
Level time: 8085113 game time, 9719376 day time
Level dimension: 0
Level storage version: 0x04ABD - Anvil
Level weather: Rain time: 50695 (now: false), thunder time: 86921 (now: false)
Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Stacktrace:
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:658)
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:331)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:569)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:454)
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:706)
-- System Details --
Details:
Minecraft Version: 1.7.2
Operating System: Windows 8 (amd64) version 6.2
Java Version: 1.7.0_51, Oracle Corporation
Java VM Version: Java HotSpot™ 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 4935576200 bytes (4706 MB) / 5145886720 bytes (4907 MB) up to 5145886720 bytes (4907 MB)
JVM Flags: 2 total; -Xms5G -Xmx5G
AABB Pool Size: 6250 (350000 bytes; 0 MB) allocated, 793 (44408 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 103
FML: MCP v9.01-pre FML v7.2.125.1034 Minecraft Forge 10.12.0.1034 7 mods loaded, 7 mods active
mcp{8.09} Minecraft Coder Pack Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
FML{7.2.125.1034} Forge Mod Loader Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Forge{10.12.0.1034} Minecraft Forge Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CustomSpawner{3.2.0.dev.R1} [DrZhark's CustomSpawner](CustomMobSpawner 3.2.0-DEV-R1.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
MoCreatures{6.2.0.dev.R1} [DrZhark's Mo'Creatures Mod](DrZharks MoCreatures Mod v6.2.0-DEV-R1.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
radixcore{1.0.0} [RadixCore](RadixCore-0.8.0.Alpha MC-1.7.2.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
mca{4.0.0.Alpha} [Minecraft Comes Alive](MCA-4.0.0.Alpha MC-1.7.2.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Profiler Position: N/A (disabled)
Vec3 Pool Size: 1752 (98112 bytes; 0 MB) allocated, 199 (11144 bytes; 0 MB) used
Player Count: 1 / 3; [EntityPlayerMP['LittleSpectre'/978, l='Adventure 1', x=-155.33, y=64.00, z=83.62]]
Is Modded: Definitely; Server brand changed to 'fml,forge'
Type: Dedicated Server (map_server.txt)

Crash occurs when villagers are being overwritten due to the villager name lists being empty. Server does not load MCA's langauge files and therefore leaves the names lists are empty.