[11:31:15] [File IO Thread/WARN]: java.io.UTFDataFormatException: encoded string too long: 248277 bytes
[11:31:15] [File IO Thread/WARN]: 	at java.io.DataOutputStream.writeUTF(DataOutputStream.java:364)
[11:31:15] [File IO Thread/WARN]: 	at java.io.DataOutputStream.writeUTF(DataOutputStream.java:323)
[11:31:15] [File IO Thread/WARN]: 	at net.minecraft.server.v1_8_R2.NBTTagString.write(SourceFile:23)
[11:31:15] [File IO Thread/WARN]: 	at net.minecraft.server.v1_8_R2.NBTTagCompound.a(SourceFile:368)
[11:31:15] [File IO Thread/WARN]: 	at net.minecraft.server.v1_8_R2.NBTTagCompound.write(SourceFile:33)
[11:31:15] [File IO Thread/WARN]: 	at net.minecraft.server.v1_8_R2.NBTTagList.write(NBTTagList.java:31)
[11:31:15] [File IO Thread/WARN]: 	at net.minecraft.server.v1_8_R2.NBTTagCompound.a(SourceFile:368)
[11:31:15] [File IO Thread/WARN]: 	at net.minecraft.server.v1_8_R2.NBTTagCompound.write(SourceFile:33)
[11:31:15] [File IO Thread/WARN]: 	at net.minecraft.server.v1_8_R2.NBTTagCompound.a(SourceFile:368)
[11:31:15] [File IO Thread/WARN]: 	at net.minecraft.server.v1_8_R2.NBTTagCompound.write(SourceFile:33)
[11:31:15] [File IO Thread/WARN]: 	at net.minecraft.server.v1_8_R2.NBTCompressedStreamTools.a(NBTCompressedStreamTools.java:70)
[11:31:15] [File IO Thread/WARN]: 	at net.minecraft.server.v1_8_R2.NBTCompressedStreamTools.a(NBTCompressedStreamTools.java:63)
[11:31:15] [File IO Thread/WARN]: 	at net.minecraft.server.v1_8_R2.ChunkRegionLoader.a(ChunkRegionLoader.java:194)
[11:31:15] [File IO Thread/WARN]: 	at net.minecraft.server.v1_8_R2.ChunkRegionLoader.c(ChunkRegionLoader.java:182)
[11:31:15] [File IO Thread/WARN]: 	at net.minecraft.server.v1_8_R2.FileIOThread.c(SourceFile:37)
[11:31:15] [File IO Thread/WARN]: 	at net.minecraft.server.v1_8_R2.FileIOThread.run(SourceFile:30)
[11:31:15] [File IO Thread/WARN]: 	at java.lang.Thread.run(Thread.java:745)
[11:47:01] [Server thread/INFO]: Saving...
[11:47:01] [File IO Thread/WARN]: java.io.UTFDataFormatException: encoded string too long: 253947 bytes
[11:47:01] [File IO Thread/WARN]: 	at java.io.DataOutputStream.writeUTF(DataOutputStream.java:364)
[11:47:01] [File IO Thread/WARN]: 	at java.io.DataOutputStream.writeUTF(DataOutputStream.java:323)
[11:47:01] [File IO Thread/WARN]: 	at net.minecraft.server.v1_8_R2.NBTTagString.write(SourceFile:23)
[11:47:01] [File IO Thread/WARN]: 	at net.minecraft.server.v1_8_R2.NBTTagCompound.a(SourceFile:368)
[11:47:01] [File IO Thread/WARN]: 	at net.minecraft.server.v1_8_R2.NBTTagCompound.write(SourceFile:33)
[11:47:01] [File IO Thread/WARN]: 	at net.minecraft.server.v1_8_R2.NBTTagList.write(NBTTagList.java:31)
[11:47:01] [File IO Thread/WARN]: 	at net.minecraft.server.v1_8_R2.NBTTagCompound.a(SourceFile:368)
[11:47:01] [File IO Thread/WARN]: 	at net.minecraft.server.v1_8_R2.NBTTagCompound.write(SourceFile:33)
[11:47:01] [File IO Thread/WARN]: 	at net.minecraft.server.v1_8_R2.NBTTagCompound.a(SourceFile:368)
[11:47:01] [File IO Thread/WARN]: 	at net.minecraft.server.v1_8_R2.NBTTagCompound.write(SourceFile:33)
[11:47:01] [File IO Thread/WARN]: 	at net.minecraft.server.v1_8_R2.NBTCompressedStreamTools.a(NBTCompressedStreamTools.java:70)
[11:47:01] [File IO Thread/WARN]: 	at net.minecraft.server.v1_8_R2.NBTCompressedStreamTools.a(NBTCompressedStreamTools.java:63)
[11:47:01] [File IO Thread/WARN]: 	at net.minecraft.server.v1_8_R2.ChunkRegionLoader.a(ChunkRegionLoader.java:194)
[11:47:01] [File IO Thread/WARN]: 	at net.minecraft.server.v1_8_R2.ChunkRegionLoader.c(ChunkRegionLoader.java:182)
[11:47:01] [File IO Thread/WARN]: 	at net.minecraft.server.v1_8_R2.FileIOThread.c(SourceFile:37)
[11:47:01] [File IO Thread/WARN]: 	at net.minecraft.server.v1_8_R2.FileIOThread.run(SourceFile:30)
[11:47:01] [File IO Thread/WARN]: 	at java.lang.Thread.run(Thread.java:745)