Server Log

[00:11:11] [Server thread/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: java.lang.IllegalArgumentException: Empty string not allowed
[00:11:11] [Server thread/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:  at net.minecraft.nbt.NBTTagString.<init>(NBTTagString.java:23)
[00:11:11] [Server thread/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:  at blusunrize.immersiveengineering.common.IESaveData.func_76187_b(IESaveData.java:120)
[00:11:11] [Server thread/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:  at net.minecraft.world.storage.MapStorage.func_75747_a(SourceFile:87)
[00:11:11] [Server thread/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:  at net.minecraft.world.storage.MapStorage.func_75744_a(SourceFile:75)
[00:11:11] [Server thread/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:  at net.minecraft.world.WorldServer.func_73042_a(WorldServer.java:838)
[00:11:11] [Server thread/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:  at net.minecraft.world.WorldServer.func_73044_a(WorldServer.java:802)
[00:11:11] [Server thread/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:  at net.minecraft.server.MinecraftServer.func_71267_a(MinecraftServer.java:318)
[00:11:11] [Server thread/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:  at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:569)
[00:11:11] [Server thread/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:  at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:427)
[00:11:11] [Server thread/INFO] [STDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]:  at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)