[23:37:10 WARN]: [CrateReloaded] Task #14 for CrateReloaded v2.0.21 generated an exception
java.lang.NullPointerException: null
at net.minecraft.server.v1_15_R1.NBTTagCompound.a(NBTTagCompound.java:419) ~[patched_1.15.1.jar:git-Paper-31]
at net.minecraft.server.v1_15_R1.NBTTagCompound.write(NBTTagCompound.java:81) ~[patched_1.15.1.jar:git-Paper-31]
at net.minecraft.server.v1_15_R1.NBTCompressedStreamTools.a(NBTCompressedStreamTools.java:102) ~[patched_1.15.1.jar:git-Paper-31]
at net.minecraft.server.v1_15_R1.NBTCompressedStreamTools.a(NBTCompressedStreamTools.java:95) ~[patched_1.15.1.jar:git-Paper-31]
at net.minecraft.server.v1_15_R1.NBTCompressedStreamTools.a(NBTCompressedStreamTools.java:51) ~[patched_1.15.1.jar:git-Paper-31]
at org.bukkit.craftbukkit.v1_15_R1.inventory.CraftMetaItem.serialize(CraftMetaItem.java:1426) ~[patched_1.15.1.jar:git-Paper-31]
at org.bukkit.craftbukkit.v1_15_R1.inventory.CraftMetaSkull.serialize(CraftMetaSkull.java:232) ~[patched_1.15.1.jar:git-Paper-31]
at org.bukkit.craftbukkit.v1_15_R1.inventory.CraftMetaItem.serialize(CraftMetaItem.java:1352) ~[patched_1.15.1.jar:git-Paper-31]
at org.bukkit.craftbukkit.v1_15_R1.inventory.CraftMetaItem.toString(CraftMetaItem.java:1519) ~[patched_1.15.1.jar:git-Paper-31]
at java.lang.String.valueOf(String.java:2951) ~[?:?]
at java.lang.StringBuilder.append(StringBuilder.java:168) ~[?:?]
at org.bukkit.inventory.ItemStack.toString(ItemStack.java:240) ~[patched_1.15.1.jar:git-Paper-31]
at java.lang.String.valueOf(String.java:2951) ~[?:?]
at java.lang.StringBuilder.append(StringBuilder.java:168) ~[?:?]
at java.util.AbstractCollection.toString(AbstractCollection.java:473) ~[?:?]
at java.util.Formatter$FormatSpecifier.printString(Formatter.java:3031) ~[?:?]
at java.util.Formatter$FormatSpecifier.print(Formatter.java:2908) ~[?:?]
at java.util.Formatter.format(Formatter.java:2673) ~[?:?]
at java.util.Formatter.format(Formatter.java:2609) ~[?:?]
at java.lang.String.format(String.java:2897) ~[?:?]
at cratereloaded.am.aj(CrateReward.java:54) ~[?:?]
at java.util.Formatter$FormatSpecifier.printString(Formatter.java:3031) ~[?:?]
at java.util.Formatter$FormatSpecifier.print(Formatter.java:2908) ~[?:?] at java.util.Formatter.format(Formatter.java:2673) ~[?:?]
at java.util.Formatter.format(Formatter.java:2609) ~[?:?]
at java.lang.String.format(String.java:2897) ~[?:?]
at cratereloaded.am.aj(CrateReward.java:54) ~[?:?]
at cratereloaded.M.a(UserCrate.java:127) ~[?:?]
at cratereloaded.M.onRewards(UserCrate.java:329) ~[?:?]
at cratereloaded.aq.o(MysteryCrate.java:28) ~[?:?]
at org.bukkit.craftbukkit.v1_15_R1.scheduler.CraftTask.run(CraftTask.java:84) ~[patched_1.15.1.jar:git-Paper-31]
at org.bukkit.craftbukkit.v1_15_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:452) ~[patched_1.15.1.jar:git-Paper-31]
at net.minecraft.server.v1_15_R1.MinecraftServer.b(MinecraftServer.java:1179) ~[patched_1.15.1.jar:git-Paper-31]
at net.minecraft.server.v1_15_R1.DedicatedServer.b(DedicatedServer.java:417) ~[patched_1.15.1.jar:git-Paper-31]
at net.minecraft.server.v1_15_R1.MinecraftServer.a(MinecraftServer.java:1106) ~[patched_1.15.1.jar:git-Paper-31]
at net.minecraft.server.v1_15_R1.MinecraftServer.run(MinecraftServer.java:933) ~[patched_1.15.1.jar:git-Paper-31]
at java.lang.Thread.run(Thread.java:834) [?:?]