net.minecraft.server.v1_13_R2.ReportedException: Loading entity NBT
at net.minecraft.server.v1_13_R2.Entity.f(Entity.java:1850) ~[patched_1.13.2.jar:git-Paper-518]
at net.minecraft.server.v1_13_R2.EntityTypes.a(EntityTypes.java:291) ~[patched_1.13.2.jar:git-Paper-518]
at net.minecraft.server.v1_13_R2.ChunkRegionLoader.a(ChunkRegionLoader.java:1114) ~[patched_1.13.2.jar:git-Paper-518]
at net.minecraft.server.v1_13_R2.ChunkRegionLoader.a(ChunkRegionLoader.java:1054) ~[patched_1.13.2.jar:git-Paper-518]
at net.minecraft.server.v1_13_R2.ChunkRegionLoader.a(ChunkRegionLoader.java:1078) ~[patched_1.13.2.jar:git-Paper-518]
at net.minecraft.server.v1_13_R2.ChunkRegionLoader.loadEntities(ChunkRegionLoader.java:799) ~[patched_1.13.2.jar:git-Paper-518]
at net.minecraft.server.v1_13_R2.PaperAsyncChunkProvider$PendingChunk.postChunk(PaperAsyncChunkProvider.java:518) ~[patched_1.13.2.jar:git-Paper-518]
at net.minecraft.server.v1_13_R2.PaperAsyncChunkProvider.processMainThreadQueue(PaperAsyncChunkProvider.java:116) ~[patched_1.13.2.jar:git-Paper-518]
at net.minecraft.server.v1_13_R2.PaperAsyncChunkProvider.processMainThreadQueue(PaperAsyncChunkProvider.java:110) ~[patched_1.13.2.jar:git-Paper-518]
at net.minecraft.server.v1_13_R2.PaperAsyncChunkProvider.processMainThreadQueue(PaperAsyncChunkProvider.java:105) ~[patched_1.13.2.jar:git-Paper-518]
at net.minecraft.server.v1_13_R2.PaperAsyncChunkProvider.processMainThreadQueue(PaperAsyncChunkProvider.java:98) ~[patched_1.13.2.jar:git-Paper-518]
at net.minecraft.server.v1_13_R2.MinecraftServer.b(MinecraftServer.java:1013) ~[patched_1.13.2.jar:git-Paper-518]
at net.minecraft.server.v1_13_R2.DedicatedServer.b(DedicatedServer.java:439) ~[patched_1.13.2.jar:git-Paper-518]
at net.minecraft.server.v1_13_R2.MinecraftServer.a(MinecraftServer.java:938) ~[patched_1.13.2.jar:git-Paper-518]
at net.minecraft.server.v1_13_R2.MinecraftServer.run(MinecraftServer.java:836) ~[patched_1.13.2.jar:git-Paper-518]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_192]
Caused by: java.lang.IllegalArgumentException: Cannot drop air
at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122) ~[patched_1.13.2.jar:git-Paper-518]
at net.minecraft.server.v1_13_R2.EntityItem.setItemStack(EntityItem.java:409) ~[patched_1.13.2.jar:git-Paper-518]
at net.minecraft.server.v1_13_R2.EntityItem.a(EntityItem.java:300) ~[patched_1.13.2.jar:git-Paper-518]
at net.minecraft.server.v1_13_R2.Entity.f(Entity.java:1769) ~[patched_1.13.2.jar:git-Paper-518]
... 15 more