How To Fix?

[OjanGimank]

[16:14:42 ERROR]: Could not pass event EntityDamageByEntityEvent to libreforge v4.79.0
java.lang.IllegalArgumentException: XP must be positive
at EcoSkills v3.67.1.jar/com.willfp.ecoskills.skills.SkillLevelMap.gainXP(SkillLevelMap.kt:64) ~[EcoSkills v3.67.1.jar:?]
at EcoSkills v3.67.1.jar/com.willfp.ecoskills.api.EcoSkillsAPI.gainSkillXP(EcoSkillsAPI.kt:48) ~[EcoSkills v3.67.1.jar:?]
at EcoSkills v3.67.1.jar/com.willfp.ecoskills.skills.SkillXPAccumulator.accept(SkillXPAccumulator.kt:37) ~[EcoSkills v3.67.1.jar:?]
at libreforge-4.79.0-1764750442555.jar/com.willfp.libreforge.counters.bind.BoundCounter.accept(BoundCounter.kt:81) ~[libreforge-4.79.0-1764750442555.jar:?]
at libreforge-4.79.0-1764750442555.jar/com.willfp.libreforge.triggers.Trigger.dispatchOnEffects(Trigger.kt:160) ~[libreforge-4.79.0-1764750442555.jar:?]
at libreforge-4.79.0-1764750442555.jar/com.willfp.libreforge.triggers.Trigger.dispatch(Trigger.kt:81) ~[libreforge-4.79.0-1764750442555.jar:?]
at libreforge-4.79.0-1764750442555.jar/com.willfp.libreforge.triggers.Trigger.dispatch$default(Trigger.kt:77) ~[libreforge-4.79.0-1764750442555.jar:?]
at libreforge-4.79.0-1764750442555.jar/com.willfp.libreforge.triggers.impl.TriggerTakeDamage.handle(TriggerTakeDamage.kt:48) ~[libreforge-4.79.0-1764750442555.jar:?]
at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:80) ~[paper-api-1.21.8-R0.1-SNAPSHOT.jar:?]
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:71) ~[paper-api-1.21.8-R0.1-SNAPSHOT.jar:?]
at io.papermc.paper.plugin.manager.PaperEventManager.callEvent(PaperEventManager.java:54) ~[paper-1.21.8.jar:1.21.8-60-29c8822]
at io.papermc.paper.plugin.manager.PaperPluginManagerImpl.callEvent(PaperPluginManagerImpl.java:131) ~[paper-1.21.8.jar:1.21.8-60-29c8822]
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:628) ~[paper-api-1.21.8-R0.1-SNAPSHOT.jar:?]
at org.bukkit.event.Event.callEvent(Event.java:46) ~[paper-api-1.21.8-R0.1-SNAPSHOT.jar:?]
at org.bukkit.craftbukkit.event.CraftEventFactory.callEntityDamageEvent(CraftEventFactory.java:1073) ~[paper-1.21.8.jar:1.21.8-60-29c8822]
at org.bukkit.craftbukkit.event.CraftEventFactory.callEntityDamageEvent(CraftEventFactory.java:1063) ~[paper-1.21.8.jar:1.21.8-60-29c8822]
at org.bukkit.craftbukkit.event.CraftEventFactory.handleEntityDamageEvent(CraftEventFactory.java:993) ~[paper-1.21.8.jar:1.21.8-60-29c8822]
at org.bukkit.craftbukkit.event.CraftEventFactory.handleEntityDamageEvent(CraftEventFactory.java:954) ~[paper-1.21.8.jar:1.21.8-60-29c8822]
at org.bukkit.craftbukkit.event.CraftEventFactory.handleLivingEntityDamageEvent(CraftEventFactory.java:1117) ~[paper-1.21.8.jar:1.21.8-60-29c8822]
at net.minecraft.world.entity.LivingEntity.handleEntityDamage(LivingEntity.java:2386) ~[paper-1.21.8.jar:1.21.8-60-29c8822]
at net.minecraft.world.entity.LivingEntity.hurtServer(LivingEntity.java:1466) ~[paper-1.21.8.jar:1.21.8-60-29c8822]
at net.minecraft.world.entity.player.Player.hurtServer(Player.java:908) ~[paper-1.21.8.jar:1.21.8-60-29c8822]
at net.minecraft.server.level.ServerPlayer.hurtServer(ServerPlayer.java:1195) ~[paper-1.21.8.jar:1.21.8-60-29c8822]
at net.minecraft.world.entity.Entity.hurtOrSimulate(Entity.java:2292) ~[paper-1.21.8.jar:1.21.8-60-29c8822]
at net.minecraft.world.entity.player.Player.attack(Player.java:1248) ~[paper-1.21.8.jar:1.21.8-60-29c8822]
at net.minecraft.server.level.ServerPlayer.attack(ServerPlayer.java:2419) ~[paper-1.21.8.jar:1.21.8-60-29c8822]
at net.minecraft.server.network.ServerGamePacketListenerImpl$1.onAttack(ServerGamePacketListenerImpl.java:2839) ~[paper-1.21.8.jar:1.21.8-60-29c8822]
at net.minecraft.network.protocol.game.ServerboundInteractPacket$1.dispatch(ServerboundInteractPacket.java:29) ~[paper-1.21.8.jar:1.21.8-60-29c8822]
at net.minecraft.network.protocol.game.ServerboundInteractPacket.dispatch(ServerboundInteractPacket.java:91) ~[paper-1.21.8.jar:1.21.8-60-29c8822]
at net.minecraft.server.network.ServerGamePacketListenerImpl.handleInteract(ServerGamePacketListenerImpl.java:2763) ~[paper-1.21.8.jar:1.21.8-60-29c8822]
at net.minecraft.network.protocol.game.ServerboundInteractPacket.handle(ServerboundInteractPacket.java:78) ~[paper-1.21.8.jar:1.21.8-60-29c8822]
at net.minecraft.network.protocol.game.ServerboundInteractPacket.handle(ServerboundInteractPacket.java:14) ~[paper-1.21.8.jar:1.21.8-60-29c8822]
at net.minecraft.network.protocol.PacketUtils.lambda$ensureRunningOnSameThread$0(PacketUtils.java:29) ~[paper-1.21.8.jar:1.21.8-60-29c8822]
at net.minecraft.server.TickTask.run(TickTask.java:18) ~[paper-1.21.8.jar:1.21.8-60-29c8822]
at net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:155) ~[paper-1.21.8.jar:1.21.8-60-29c8822]
at net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:24) ~[paper-1.21.8.jar:1.21.8-60-29c8822]
at net.minecraft.server.MinecraftServer.doRunTask(MinecraftServer.java:1450) ~[paper-1.21.8.jar:1.21.8-60-29c8822]
at net.minecraft.server.MinecraftServer.doRunTask(MinecraftServer.java:176) ~[paper-1.21.8.jar:1.21.8-60-29c8822]
at net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:129) ~[paper-1.21.8.jar:1.21.8-60-29c8822]
at net.minecraft.server.MinecraftServer.pollTaskInternal(MinecraftServer.java:1430) ~[paper-1.21.8.jar:1.21.8-60-29c8822]
at net.minecraft.server.MinecraftServer.pollTask(MinecraftServer.java:1424) ~[paper-1.21.8.jar:1.21.8-60-29c8822]
at net.minecraft.util.thread.BlockableEventLoop.managedBlock(BlockableEventLoop.java:139) ~[paper-1.21.8.jar:1.21.8-60-29c8822]
at net.minecraft.server.MinecraftServer.managedBlock(MinecraftServer.java:1381) ~[paper-1.21.8.jar:1.21.8-60-29c8822]
at net.minecraft.server.MinecraftServer.waitUntilNextTick(MinecraftServer.java:1389) ~[paper-1.21.8.jar:1.21.8-60-29c8822]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1266) ~[paper-1.21.8.jar:1.21.8-60-29c8822]
at net.minecraft.server.MinecraftServer.lambda$spin$2(MinecraftServer.java:310) ~[paper-1.21.8.jar:1.21.8-60-29c8822]
at java.base/java.lang.Thread.run(Thread.java:1583) ~[?:?]