Server Crash

java.lang.NullPointerException: Exception ticking world
    at dan200.computercraft.core.terminal.Terminal.writeToNBT(Terminal.java:315)
    at dan200.computercraft.shared.common.ServerTerminal.writeDescripti
on(ServerTerminal.java:96)
    at dan200.computercraft.shared.peripheral.monitor.TileMonitor.writeDescription(TileMonitor.java:320)
    at dan200.computercraft.shared.common.TileGeneric.func_145844_m(TileGeneric.java:188)
    at net.minecraft.server.management.PlayerManager$PlayerInstance.func_151252_a(PlayerManager.java:591)
    at net.minecraft.server.management.PlayerManager$PlayerInstance.func_73254_a(PlayerManager.java:533)
    at net.minecraft.server.management.PlayerManager.func_72693_b(PlayerManager.java:67)
    at net.minecraft.world.WorldServer.func_72835_b(WorldServer.java:185)
    at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:625)
    at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:334)
    at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:396)
    at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)


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

-- Head --
Stacktrace:
    at dan200.computercraft.core.terminal.Terminal.writeToNBT(Terminal.java:315)
    at dan200.computercraft.shared.common.ServerTerminal.writeDescription(ServerTerminal.java:96)
    at dan200.computercraft.shared.peripheral.monitor.TileMonitor.writeDescription(TileMonitor.java:320)
    at dan200.computercraft.shared.common.TileGeneric.func_145844_m(TileGeneric.java:188)
    at net.minecraft.server.management.PlayerManager$PlayerInstance.func_151252_a(PlayerManager.java:591)
    at net.minecraft.server.management.PlayerManager$PlayerInstance.func_73254_a(PlayerManager.java:533)
    at net.minecraft.server.management.PlayerManager.func_72693_b(PlayerManager.java:67)
    at net.minecraft.world.WorldServer.func_72835_b(WorldServer.java:18
)
    at net.minecraft.server.MinecraftServer.func_71190q(MinecraftServer.java:625)

-- Affected level --
Details:
    Level name: therealone
    All players: 4 total; [EntityPlayerMP['BikeThief'/257516, l='therealone', x=-1620.55, y=69.32, z=-1695.23], EntityPlayerMP['NanoBlaze13'/288093, l='therealone', x=466.73, y=68.00, z=-1463.24], EntityPlayerMP['swiftrooster'/359185, l='therealone', x=-1556.32, y=70.25, z=-1605.22], EntityPlayerMP['UndercoverQuasar'/30754, l='therealone', x=4536.10, y=56.00, z=178.07]]
    Chunk stats: ServerChunkCache: 1489 Drop: 0
    Level seed: 2586415682953540243
    Level generator: ID 04 - BIOMESOP, ver 0. Features enabled: true
    Level generator options:
    Level spawn location: World: (-830,64,665), Chunk: (at 2,4,9 in -52,41; contains blocks -832,0,656 to -817,255,671), Region: (-2,1; contains chunks -64,32 to -33,63, blocks -1024,0,512 to -513,255,1023)
    Level time: 23840455 game time, 8538302 day time
    Level dimension: 0
    Level storage version: 0x04ABD - Anvil
    Level weather: Rain time: 22125 (now: true), thunder time: 88055 (now: false)
    Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Stacktrace:
    at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:334)
    at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:396)
    at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)