I am running an ftb unleashed server and for some reason it just randomly crashed when me and my friends were playing. It keeps giving me the following report. I can't seem to figure out what the problem is, please help! Thank you!
[INFO] Starting minecraft server version 1.5.2
[INFO] Loading properties
[INFO] Default game type: SURVIVAL
[INFO] Generating keypair
[INFO] Starting Minecraft server on *:25565
[INFO] Preparing level "world"
[INFO] Preparing start region for level 0
[INFO] Done (2.012s)! For help, type "help" or "?"
[INFO] Damage Indicators Mod v.2.7.0.1 is out of date. v.2.9.0.0 is now available.
[WARNING] Can't keep up! Did the system time change, or is the server overloaded?
[SEVERE] Encountered an unexpected exception ReportedException
net.minecraft.util.ReportedException: Exception while ticking a block
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:649)
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:275)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:573)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:470)
at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:573)
Caused by: java.lang.NoClassDefFoundError: net/minecraft/world/CallableLvl1
at net.minecraft.world.World.func_72821_m(World.java:861)
at net.minecraft.world.World.func_72898_h(World.java:787)
at net.minecraft.world.World.func_72851_f(World.java:740)
at net.minecraft.world.World.func_72832_d(World.java:572)
at net.minecraft.world.World.func_94571_i(World.java:687)
at net.minecraft.block.BlockFire.func_71847_b(BlockFire.java:133)
at net.minecraft.world.WorldServer.func_72955_a(WorldServer.java:613)
at net.minecraft.world.WorldServer.func_72835_b(WorldServer.java:195)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:643)
... 4 more
[SEVERE] This crash report has been saved to: C:\Users\zweis_000\Desktop\Unleashed Server\Unleashed-server\.\crash-reports\crash-2013-08-23_15.26.28-server.txt
[INFO] Starting minecraft server version 1.5.2
[INFO] Loading properties
[INFO] Default game type: SURVIVAL
[INFO] Generating keypair
[INFO] Starting Minecraft server on *:25565
[INFO] Preparing level "world"
[INFO] Preparing start region for level 0
[INFO] Done (2.012s)! For help, type "help" or "?"
[INFO] Damage Indicators Mod v.2.7.0.1 is out of date. v.2.9.0.0 is now available.
[WARNING] Can't keep up! Did the system time change, or is the server overloaded?
[SEVERE] Encountered an unexpected exception ReportedException
net.minecraft.util.ReportedException: Exception while ticking a block
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:649)
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:275)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:573)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:470)
at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:573)
Caused by: java.lang.NoClassDefFoundError: net/minecraft/world/CallableLvl1
at net.minecraft.world.World.func_72821_m(World.java:861)
at net.minecraft.world.World.func_72898_h(World.java:787)
at net.minecraft.world.World.func_72851_f(World.java:740)
at net.minecraft.world.World.func_72832_d(World.java:572)
at net.minecraft.world.World.func_94571_i(World.java:687)
at net.minecraft.block.BlockFire.func_71847_b(BlockFire.java:133)
at net.minecraft.world.WorldServer.func_72955_a(WorldServer.java:613)
at net.minecraft.world.WorldServer.func_72835_b(WorldServer.java:195)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:643)
... 4 more
[SEVERE] This crash report has been saved to: C:\Users\zweis_000\Desktop\Unleashed Server\Unleashed-server\.\crash-reports\crash-2013-08-23_15.26.28-server.txt