Edit: Crashes everytime I join... Error: Code: Encountered an unexpected exception net.minecraft.server.v1_11_R1.ReportedException: Loading NBT data at net.minecraft.server.v1_11_R1.NBTTagCompound.a(SourceFile:433) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-f709362] at net.minecraft.server.v1_11_R1.NBTTagCompound.load(SourceFile:76) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-f709362] at net.minecraft.server.v1_11_R1.NBTTagCompound.a(SourceFile:427) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-f709362] at net.minecraft.server.v1_11_R1.NBTTagCompound.load(SourceFile:76) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-f709362] at net.minecraft.server.v1_11_R1.NBTCompressedStreamTools.a(NBTCompressedStreamTools.java:84) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-f709362] at net.minecraft.server.v1_11_R1.NBTCompressedStreamTools.a(NBTCompressedStreamTools.java:53) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-f709362] at net.minecraft.server.v1_11_R1.NBTCompressedStreamTools.a(NBTCompressedStreamTools.java:43) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-f709362] at net.minecraft.server.v1_11_R1.RegionFileCache.d(RegionFileCache.java:87) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-f709362] at net.minecraft.server.v1_11_R1.ChunkRegionLoader.loadChunk(ChunkRegionLoader.java:69) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-f709362] at org.bukkit.craftbukkit.v1_11_R1.chunkio.ChunkIOProvider.callStage1(ChunkIOProvider.java:21) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-f709362] at org.bukkit.craftbukkit.v1_11_R1.chunkio.ChunkIOProvider.callStage1(ChunkIOProvider.java:1) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-f709362] at org.bukkit.craftbukkit.v1_11_R1.util.AsynchronousExecutor$Task.init(AsynchronousExecutor.java:150) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-f709362] at org.bukkit.craftbukkit.v1_11_R1.util.AsynchronousExecutor$Task.initAsync(AsynchronousExecutor.java:95) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-f709362] at org.bukkit.craftbukkit.v1_11_R1.util.AsynchronousExecutor$Task.run(AsynchronousExecutor.java:85) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-f709362] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) ~[?:1.8.0_121] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) ~[?:1.8.0_121] at java.lang.Thread.run(Thread.java:745) [?:1.8.0_121] Caused by: java.io.UTFDataFormatException: malformed input around byte 5 at java.io.DataInputStream.readUTF(DataInputStream.java:656) ~[?:1.8.0_121] at java.io.DataInputStream.readUTF(DataInputStream.java:564) ~[?:1.8.0_121] at net.minecraft.server.v1_11_R1.NBTTagCompound.b(SourceFile:420) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-f709362] at net.minecraft.server.v1_11_R1.NBTTagCompound.load(SourceFile:73) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-f709362] at net.minecraft.server.v1_11_R1.NBTTagList.load(SourceFile:66) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-f709362] at net.minecraft.server.v1_11_R1.NBTTagCompound.a(SourceFile:427) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-f709362] ... 16 more [19:29:59 ERROR]: Cause of unexpected exception was java.io.UTFDataFormatException: malformed input around byte 5 at java.io.DataInputStream.readUTF(DataInputStream.java:656) ~[?:1.8.0_121] at java.io.DataInputStream.readUTF(DataInputStream.java:564) ~[?:1.8.0_121] at net.minecraft.server.v1_11_R1.NBTTagCompound.b(SourceFile:420) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-f709362] at net.minecraft.server.v1_11_R1.NBTTagCompound.load(SourceFile:73) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-f709362] at net.minecraft.server.v1_11_R1.NBTTagList.load(SourceFile:66) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-f709362] at net.minecraft.server.v1_11_R1.NBTTagCompound.a(SourceFile:427) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-f709362] at net.minecraft.server.v1_11_R1.NBTTagCompound.load(SourceFile:76) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-f709362] at net.minecraft.server.v1_11_R1.NBTTagCompound.a(SourceFile:427) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-f709362] at net.minecraft.server.v1_11_R1.NBTTagCompound.load(SourceFile:76) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-f709362] at net.minecraft.server.v1_11_R1.NBTCompressedStreamTools.a(NBTCompressedStreamTools.java:84) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-f709362] at net.minecraft.server.v1_11_R1.NBTCompressedStreamTools.a(NBTCompressedStreamTools.java:53) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-f709362] at net.minecraft.server.v1_11_R1.NBTCompressedStreamTools.a(NBTCompressedStreamTools.java:43) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-f709362] at net.minecraft.server.v1_11_R1.RegionFileCache.d(RegionFileCache.java:87) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-f709362] at net.minecraft.server.v1_11_R1.ChunkRegionLoader.loadChunk(ChunkRegionLoader.java:69) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-f709362] at org.bukkit.craftbukkit.v1_11_R1.chunkio.ChunkIOProvider.callStage1(ChunkIOProvider.java:21) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-f709362] at org.bukkit.craftbukkit.v1_11_R1.chunkio.ChunkIOProvider.callStage1(ChunkIOProvider.java:1) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-f709362] at org.bukkit.craftbukkit.v1_11_R1.util.AsynchronousExecutor$Task.init(AsynchronousExecutor.java:150) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-f709362] at org.bukkit.craftbukkit.v1_11_R1.util.AsynchronousExecutor$Task.initAsync(AsynchronousExecutor.java:95) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-f709362] at org.bukkit.craftbukkit.v1_11_R1.util.AsynchronousExecutor$Task.run(AsynchronousExecutor.java:85) ~[spigot-1.11.2.jar:git-Spigot-7d78b81-f709362] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) ~[?:1.8.0_121] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) ~[?:1.8.0_121] at java.lang.Thread.run(Thread.java:745) [?:1.8.0_121] I can't join my own Server anymore
@ezcode There is an invalid NBT tag associated with your player. Try removing the player's data from your server and then restart your server.