> [02:21:39 WARN]: Exception in thread "Head Conversion Thread - 2"
> [02:21:39 WARN]: java.lang.IllegalArgumentException: Name and ID cannot both be blank
> [02:21:39 WARN]: at com.mojang.authlib.GameProfile.<init>(GameProfile.java:25)
> [02:21:39 WARN]: at com.mojang.authlib.yggdrasil.YggdrasilMinecraftSessionService.fillGameProfile(YggdrasilMinecraftSessionService.java:181)
> [02:21:39 WARN]: at com.mojang.authlib.yggdrasil.YggdrasilMinecraftSessionService.fillProfileProperties(YggdrasilMinecraftSessionService.java:168)
> [02:21:39 WARN]: at net.minecraft.server.v1_8_R3.TileEntitySkull$1.load(SourceFile:71)
> [02:21:39 WARN]: at net.minecraft.server.v1_8_R3.TileEntitySkull$1.load(SourceFile:38)
> [02:21:39 WARN]: at com.github.benmanes.caffeine.cache.BoundedLocalCache$BoundedLocalLoadingCache.lambda$new$0(BoundedLocalCache.java:3670)
> [02:21:39 WARN]: at com.github.benmanes.caffeine.cache.BoundedLocalCache.lambda$doComputeIfAbsent$14(BoundedLocalCache.java:2337)
> [02:21:39 WARN]: at java.util.concurrent.ConcurrentHashMap.compute(ConcurrentHashMap.java:1853)
> [02:21:39 WARN]: at com.github.benmanes.caffeine.cache.BoundedLocalCache.doComputeIfAbsent(BoundedLocalCache.java:2335)
> [02:21:39 WARN]: at com.github.benmanes.caffeine.cache.BoundedLocalCache.computeIfAbsent(BoundedLocalCache.java:2318)
> [02:21:39 WARN]: at com.github.benmanes.caffeine.cache.LocalCache.computeIfAbsent(LocalCache.java:111)
> [02:21:39 WARN]: at com.github.benmanes.caffeine.cache.LocalLoadingCache.get(LocalLoadingCache.java:66)
> [02:21:39 WARN]: at net.minecraft.server.v1_8_R3.TileEntitySkull$3.run(SourceFile:173)
> [02:21:39 WARN]: at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> [02:21:39 WARN]: at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> [02:21:39 WARN]: at java.lang.Thread.run(Thread.java:748)