Crash with signal disrupter

[CaptainMegavolt]

When I right-click with a signal jammer I get this crash:

[12:56:00] [Server thread/ERROR]: Encountered an unexpected exception
net.minecraft.util.ReportedException: Ticking memory connection
at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:181) ~[nc.class:?]
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:659) ~[MinecraftServer.class:?]
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547) ~[MinecraftServer.class:?]
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:111) ~[bsx.class:?]
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:427) [MinecraftServer.class:?]
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685) [?:?]
Caused by: java.lang.NullPointerException
at net.minecraft.network.NetHandlerPlayServer.func_147346_a(NetHandlerPlayServer.java:620) ~[nh.class:?]
at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.func_148833_a(SourceFile:60) ~[jo.class:?]
at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.func_148833_a(SourceFile:9) ~[jo.class:?]
at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:212) ~[ej.class:?]
at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:165) ~[nc.class:?]
... 5 more
[12:56:00] [Server thread/ERROR]: This crash report has been saved to: C:\Users\niels\Desktop\MultiMC\instances\Megawatt\minecraft\crash-reports\crash-2016-05-01_12.56.00-server.txt
[12:56:00] [Server thread/INFO]: Stopping server
[12:56:00] [Server thread/INFO]: Saving players
[12:56:00] [Server thread/INFO]: Saving worlds
[12:56:00] [Server thread/INFO]: Saving chunks for level 'test world'/Overworld
[12:56:00] [Client thread/INFO]: [net.minecraft.client.Minecraft:func_71377_b:349]: ---- Minecraft Crash Report ----
// Shall we play a game?

Time: 5/1/16 12:56 PM
Description: Ticking memory connection

java.lang.NullPointerException: Ticking memory connection
at net.minecraft.network.NetHandlerPlayServer.func_147346_a(NetHandlerPlayServer.java:620)
at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.func_148833_a(SourceFile:60)
at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.func_148833_a(SourceFile:9)
at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:212)
at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:165)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:659)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:111)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:427)
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 net.minecraft.network.NetHandlerPlayServer.func_147346_a(NetHandlerPlayServer.java:620)
at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.func_148833_a(SourceFile:60)
at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.func_148833_a(SourceFile:9)
at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:212)

-- Ticking connection --
Details:
Connection: net.minecraft.network.NetworkManager@7d856e1c
Stacktrace:
at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:165)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:659)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:111)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:427)
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)

-- System Details --
Details:
Minecraft Version: 1.7.10
Operating System: Windows 10 (amd64) version 10.0
Java Version: 1.8.0_91, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 2016113640 bytes (1922 MB) / 2704801792 bytes (2579 MB) up to 6524764160 bytes (6222 MB)
JVM Flags: 3 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xms512m -Xmx7000m
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94
FML: MCP v9.05 FML v7.10.99.99 Minecraft Forge 10.13.4.1614 12 mods loaded, 12 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
UCHIJAAAA mcp{9.05} Minecraft Coder Pack
UCHIJAAAA FML{7.10.99.99} Forge Mod Loader
UCHIJAAAA Forge{10.13.4.1614} Minecraft Forge
UCHIJAAAA IC2{2.2.999} [Industrial Craft Classic](IC2 Classic Version 1.2.0.1.jar)
UCHIJAAAA ForgeMultipart{1.1.2.331} Forge Multipart
UCHIJAAAA Mekanism{8.1.9} Mekanism
UCHIJAAAA DefenseTech{1.0.1} [DefenseTech](DefenseTech-1.7.10-1.0.1.26 %281%29.jar)
UCHIJAAAA IC2-Classic-Spmod{0.0.0.0} [IC2 Classic Detection Helper](IC2 Classic Version 1.2.0.1.jar)
UCHIJAAAA MekanismGenerators{8.1.9} MekanismGenerators
UCHIJAAAA MekanismTools{8.1.9} MekanismTools
UCHIJAAAA McMultipart{1.1.2.331} Minecraft Multipart Plugin
UCHIJAAAA ForgeMicroblock{1.1.2.331} Forge Microblocks
GL info: ERROR RuntimeException: No OpenGL context found in the current thread.
Profiler Position: N/A (disabled)
Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Player Count: 1 / 8; [EntityPlayerMP[''/173, l='test world', x=-18.37, y=71.00, z=254.30]]
Type: Integrated Server (map_client.txt)
Is Modded: Definitely; Client brand changed to 'fml,forge'
[12:56:00] [Client thread/INFO]: [net.minecraft.client.Minecraft:func_71377_b:354]: #@!@# Game crashed! Crash report saved to: #@!@# C:\Users\niels\Desktop\MultiMC\instances\Megawatt\minecraft\crash-reports\crash-2016-05-01_12.56.00-server.txt
[12:56:00] [Client thread/INFO]: Waiting for the server to terminate/save.
[12:56:00] [Server thread/INFO]: Saving chunks for level 'test world'/Nether
[12:56:00] [Server thread/INFO]: Saving chunks for level 'test world'/The End
[12:56:02] [Server thread/INFO]: Unloading dimension 0
[12:56:02] [Server thread/INFO]: Unloading dimension -1
[12:56:02] [Server thread/INFO]: Unloading dimension 1
[12:56:02] [Server thread/INFO]: Applying holder lookups
[12:56:02] [Server thread/INFO]: Holder lookups applied
[12:56:02] [Server thread/INFO]: The state engine was in incorrect state SERVER_STOPPING and forced into state SERVER_STOPPED. Errors may have been discarded.
[12:56:02] [Client thread/INFO]: Server terminated.
AL lib: (EE) alc_cleanup: 1 device not closed
Process exited with code -1.