PlayerdeathEvent Bug, something with FFa's

[RommelRPG]

[18:37:01 ERROR]: Could not pass event PlayerDeathEvent to ZonePracticePro v7.5.0-dev-118-ec0892f
java.lang.NullPointerException: Cannot invoke "dev.nandi0813.practice.manager.fight.util.Stats.Statistic.getKills()" because "statistic" is null
at ZonePractice-Pro-7.5.0-dev-118-ec0892f.jar//dev.nandi0813.practice.manager.fight.ffa.FFAListener.onPlayerDeath(FFAListener.java:403) ~[?:?]
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:71) ~[leaf-api-1.21.11-R0.1-SNAPSHOT.jar:?]
at io.papermc.paper.plugin.manager.PaperEventManager.callEvent(PaperEventManager.java:60) ~[leaf-1.21.11.jar:1.21.11-119-8dd209e]
at io.papermc.paper.plugin.manager.PaperPluginManagerImpl.callEvent(PaperPluginManagerImpl.java:131) ~[leaf-1.21.11.jar:1.21.11-119-8dd209e]
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:629) ~[leaf-api-1.21.11-R0.1-SNAPSHOT.jar:?]
at org.bukkit.craftbukkit.event.CraftEventFactory.callPlayerDeathEvent(CraftEventFactory.java:1056) ~[leaf-1.21.11.jar:1.21.11-119-8dd209e]
at net.minecraft.server.level.ServerPlayer.die(ServerPlayer.java:1203) ~[leaf-1.21.11.jar:1.21.11-119-8dd209e]
at net.minecraft.world.entity.LivingEntity.hurtServer(LivingEntity.java:1654) ~[leaf-1.21.11.jar:1.21.11-119-8dd209e]
at net.minecraft.world.entity.player.Player.hurtServer(Player.java:805) ~[leaf-1.21.11.jar:1.21.11-119-8dd209e]
at net.minecraft.server.level.ServerPlayer.hurtServer(ServerPlayer.java:1356) ~[leaf-1.21.11.jar:1.21.11-119-8dd209e]
at net.minecraft.world.level.ServerExplosion.hurtEntities(ServerExplosion.java:522) ~[leaf-1.21.11.jar:1.21.11-119-8dd209e]
at net.minecraft.world.level.ServerExplosion.explode(ServerExplosion.java:717) ~[leaf-1.21.11.jar:1.21.11-119-8dd209e]
at net.minecraft.server.level.ServerLevel.explode0(ServerLevel.java:2276) ~[leaf-1.21.11.jar:1.21.11-119-8dd209e]
at net.minecraft.server.level.ServerLevel.explode0(ServerLevel.java:2244) ~[leaf-1.21.11.jar:1.21.11-119-8dd209e]
at net.minecraft.server.level.ServerLevel.explode(ServerLevel.java:2226) ~[leaf-1.21.11.jar:1.21.11-119-8dd209e]
at net.minecraft.world.level.Level.explode(Level.java:1637) ~[leaf-1.21.11.jar:1.21.11-119-8dd209e]
at net.minecraft.world.entity.boss.enderdragon.EndCrystal.hurtServer(EndCrystal.java:196) ~[leaf-1.21.11.jar:1.21.11-119-8dd209e]
at net.minecraft.world.entity.Entity.hurtOrSimulate(Entity.java:2533) ~[leaf-1.21.11.jar:1.21.11-119-8dd209e]
at net.minecraft.world.entity.player.Player.attack(Player.java:1115) ~[leaf-1.21.11.jar:1.21.11-119-8dd209e]
at net.minecraft.server.level.ServerPlayer.attack(ServerPlayer.java:2760) ~[leaf-1.21.11.jar:1.21.11-119-8dd209e]
at net.minecraft.server.network.ServerGamePacketListenerImpl$1.onAttack(ServerGamePacketListenerImpl.java:3049) ~[leaf-1.21.11.jar:1.21.11-119-8dd209e]
at net.minecraft.network.protocol.game.ServerboundInteractPacket$1.dispatch(ServerboundInteractPacket.java:31) ~[leaf-1.21.11.jar:1.21.11-119-8dd209e]
at net.minecraft.network.protocol.game.ServerboundInteractPacket.dispatch(ServerboundInteractPacket.java:98) ~[leaf-1.21.11.jar:1.21.11-119-8dd209e]
at net.minecraft.server.network.ServerGamePacketListenerImpl.handleInteract(ServerGamePacketListenerImpl.java:2955) ~[leaf-1.21.11.jar:1.21.11-119-8dd209e]
at net.minecraft.network.protocol.game.ServerboundInteractPacket.handle(ServerboundInteractPacket.java:80) ~[leaf-1.21.11.jar:1.21.11-119-8dd209e]
at net.minecraft.network.protocol.game.ServerboundInteractPacket.handle(ServerboundInteractPacket.java:16) ~[leaf-1.21.11.jar:1.21.11-119-8dd209e]
at net.minecraft.network.PacketProcessor$ListenerAndPacket.handle(PacketProcessor.java:99) ~[leaf-1.21.11.jar:1.21.11-119-8dd209e]
at net.minecraft.network.PacketProcessor.executeSinglePacket(PacketProcessor.java:33) ~[leaf-1.21.11.jar:1.21.11-119-8dd209e]
at net.minecraft.server.MinecraftServer.pollTask(MinecraftServer.java:1600) ~[leaf-1.21.11.jar:1.21.11-119-8dd209e]
at net.minecraft.server.MinecraftServer.recordTaskExecutionTimeWhileWaiting(MinecraftServer.java:1297) ~[leaf-1.21.11.jar:1.21.11-119-8dd209e]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1440) ~[leaf-1.21.11.jar:1.21.11-119-8dd209e]
at net.minecraft.server.MinecraftServer.lambda$spin$2(MinecraftServer.java:430) ~[leaf-1.21.11.jar:1.21.11-119-8dd209e]