Repeating error on server side

[Meep1122131313]

Here is an error that has suddenly started appearing in my server log. I'm not really sure what's causing it. So here is the error that keeps appearing.

[16:06:12] [Server thread/FATAL] [VanillaFix]: Error executing task
java.util.concurrent.ExecutionException: java.lang.NullPointerException
at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[?:1.8.0_312]
at java.util.concurrent.FutureTask.get(FutureTask.java:192) ~[?:1.8.0_312]
at net.minecraft.util.Util.func_181617_a(SourceFile:531) [h.class:?]
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:723) [MinecraftServer.class:?]
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:397) [nz.class:?]
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:668) [MinecraftServer.class:?]
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526) [MinecraftServer.class:?]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_312]
Caused by: java.lang.NullPointerException
at micdoodle8.mods.galacticraft.api.vector.BlockVec3.getTileEntityOnSide(BlockVec3.java:439) ~[BlockVec3.class:?]
at micdoodle8.mods.galacticraft.core.energy.tile.TileBaseUniversalConductor.getCapability(TileBaseUniversalConductor.java:457) ~[TileBaseUniversalConductor.class:?]
at mcp.mobius.waila.addons.capability.HUDHandlerEnergy.getNBTData(HUDHandlerEnergy.java:46) ~[HUDHandlerEnergy.class:?]
at mcp.mobius.waila.network.MessageRequestTile$Handler.lambda$onMessage$0(MessageRequestTile.java:93) ~[MessageRequestTile$Handler.class:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_312]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_312]
at net.minecraft.util.Util.func_181617_a(SourceFile:529) ~[h.class:?]
... 5 more