Player Death Issue

[TUCAOEVER]

When player join a dungeon and killed by mobs

[21:15:08 ERROR]: Could not pass event EntityDamageByEntityEvent to DungeonsXL v0.18-SNAPSHOT-1004
java.lang.IllegalArgumentException: Experience level must not be negative (-7)
at com.google.common.base.Preconditions.checkArgument(Preconditions.java:168) ~[patched_1.15.2.jar:git-Paper-379]
at org.bukkit.craftbukkit.v1_15_R1.entity.CraftPlayer.setLevel(CraftPlayer.java:1094) ~[patched_1.15.2.jar:git-Paper-379]
at de.erethon.dungeonsxl.player.DGamePlayer.onDeath(DGamePlayer.java:653) ~[?:?]
at de.erethon.dungeonsxl.player.DPlayerListener.onEntityDamage(DPlayerListener.java:115) ~[?:?]
at com.destroystokyo.paper.event.executor.asm.generated.GeneratedEventExecutor736.execute(Unknown Source) ~[?:?]
at org.bukkit.plugin.EventExecutor.lambda$create$1(EventExecutor.java:69) ~[patched_1.15.2.jar:git-Paper-379]
at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:80) ~[patched_1.15.2.jar:git-Paper-379]
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70) ~[patched_1.15.2.jar:git-Paper-379]
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:607) ~[patched_1.15.2.jar:git-Paper-379]
at org.bukkit.craftbukkit.v1_15_R1.event.CraftEventFactory.callEvent(CraftEventFactory.java:240) ~[patched_1.15.2.jar:git-Paper-379]
at org.bukkit.craftbukkit.v1_15_R1.event.CraftEventFactory.callEntityDamageEvent(CraftEventFactory.java:1008) ~[patched_1.15.2.jar:git-Paper-379]
at org.bukkit.craftbukkit.v1_15_R1.event.CraftEventFactory.handleEntityDamageEvent(CraftEventFactory.java:895) ~[patched_1.15.2.jar:git-Paper-379]
at org.bukkit.craftbukkit.v1_15_R1.event.CraftEventFactory.handleEntityDamageEvent(CraftEventFactory.java:851) ~[patched_1.15.2.jar:git-Paper-379]
at org.bukkit.craftbukkit.v1_15_R1.event.CraftEventFactory.handleLivingEntityDamageEvent(CraftEventFactory.java:1040) ~[patched_1.15.2.jar:git-Paper-379]
at net.minecraft.server.v1_15_R1.EntityLiving.damageEntity0(EntityLiving.java:1691) ~[patched_1.15.2.jar:git-Paper-379]
at net.minecraft.server.v1_15_R1.EntityHuman.damageEntity0(EntityHuman.java:878) ~[patched_1.15.2.jar:git-Paper-379]
at net.minecraft.server.v1_15_R1.EntityLiving.damageEntity(EntityLiving.java:1049) ~[patched_1.15.2.jar:git-Paper-379]
at net.minecraft.server.v1_15_R1.EntityHuman.damageEntity(EntityHuman.java:801) ~[patched_1.15.2.jar:git-Paper-379]
at net.minecraft.server.v1_15_R1.EntityPlayer.damageEntity(EntityPlayer.java:780) ~[patched_1.15.2.jar:git-Paper-379]
at net.minecraft.server.v1_15_R1.EntityInsentient.B(EntityInsentient.java:1327) ~[patched_1.15.2.jar:git-Paper-379]
at net.minecraft.server.v1_15_R1.EntityZombie.B(EntityZombie.java:359) ~[patched_1.15.2.jar:git-Paper-379]
at net.minecraft.server.v1_15_R1.PathfinderGoalMeleeAttack.a(SourceFile:139) ~[patched_1.15.2.jar:git-Paper-379]
at net.minecraft.server.v1_15_R1.PathfinderGoalMeleeAttack.e(SourceFile:131) ~[patched_1.15.2.jar:git-Paper-379]
at net.minecraft.server.v1_15_R1.PathfinderGoalWrapped.e(PathfinderGoalWrapped.java:54) ~[patched_1.15.2.jar:git-Paper-379]
at net.minecraft.server.v1_15_R1.PathfinderGoalSelector.doTick(PathfinderGoalSelector.java:150) ~[patched_1.15.2.jar:git-Paper-379]
at net.minecraft.server.v1_15_R1.EntityInsentient.doTick(EntityInsentient.java:686) ~[patched_1.15.2.jar:git-Paper-379]
at net.minecraft.server.v1_15_R1.EntityLiving.movementTick(EntityLiving.java:2609) ~[patched_1.15.2.jar:git-Paper-379]
at net.minecraft.server.v1_15_R1.EntityInsentient.movementTick(EntityInsentient.java:525) ~[patched_1.15.2.jar:git-Paper-379]
at net.minecraft.server.v1_15_R1.EntityMonster.movementTick(EntityMonster.java:23) ~[patched_1.15.2.jar:git-Paper-379]
at net.minecraft.server.v1_15_R1.EntityZombie.movementTick(EntityZombie.java:209) ~[patched_1.15.2.jar:git-Paper-379]
at net.minecraft.server.v1_15_R1.EntityLiving.tick(EntityLiving.java:2396) ~[patched_1.15.2.jar:git-Paper-379]
at net.minecraft.server.v1_15_R1.EntityInsentient.tick(EntityInsentient.java:288) ~[patched_1.15.2.jar:git-Paper-379]
at net.minecraft.server.v1_15_R1.EntityZombie.tick(EntityZombie.java:179) ~[patched_1.15.2.jar:git-Paper-379]
at net.minecraft.server.v1_15_R1.WorldServer.entityJoinedWorld(WorldServer.java:808) ~[patched_1.15.2.jar:git-Paper-379]
at net.minecraft.server.v1_15_R1.World.a(World.java:879) ~[patched_1.15.2.jar:git-Paper-379]
at net.minecraft.server.v1_15_R1.WorldServer.doTick(WorldServer.java:532) ~[patched_1.15.2.jar:git-Paper-379]
at net.minecraft.server.v1_15_R1.MinecraftServer.b(MinecraftServer.java:1327) ~[patched_1.15.2.jar:git-Paper-379]
at net.minecraft.server.v1_15_R1.DedicatedServer.b(DedicatedServer.java:431) ~[patched_1.15.2.jar:git-Paper-379]
at net.minecraft.server.v1_15_R1.MinecraftServer.a(MinecraftServer.java:1181) ~[patched_1.15.2.jar:git-Paper-379]
at net.minecraft.server.v1_15_R1.MinecraftServer.run(MinecraftServer.java:970) ~[patched_1.15.2.jar:git-Paper-379]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_181]