Could not find MythicLib skill variable ERROR when using MMSKill in trigger

An Error will always pop up in console when i use mmskill trigger in Class.yml for MMOCORE

triggers: weapon-damage: - 'mana{operation=GIVE;amount=1-3}' - 'mmskill{id=Brutal_Strike}'

The Skill will still be casted but an error will spam the console. There is a skills file for MythicLib and MythicMobs so there should be no problem but it has errors in console which is annoying.

[13:12:45 ERROR]: [MythicMobs] [SCHEDULER] Exception thrown whilst executing task
[13:12:45 WARN]: java.lang.IllegalArgumentException: Could not find MythicLib skill variable
[13:12:45 WARN]:        at org.apache.commons.lang.Validate.notNull(Validate.java:192)
[13:12:45 WARN]:        at MythicLib-dist-1.7.1-2.jar//io.lumine.mythic.lib.comp.mythicmobs.MythicLibSupportImpl.lambda$registerPlaceholders$3(MythicLibSupportImpl.java:83)
[13:12:45 WARN]:        at MythicMobs-5.8.0-SNAPSHOT 5242 .jar//io.lumine.mythic.core.skills.placeholders.all.FunctionalMetaPlaceholder.apply(FunctionalMetaPlaceholder.java:23)
[13:12:45 WARN]:        at MythicMobs-5.8.0-SNAPSHOT 5242 .jar//io.lumine.mythic.core.skills.placeholders.all.FunctionalMetaPlaceholder.apply(FunctionalMetaPlaceholder.java:11)
[13:12:45 WARN]:        at MythicMobs-5.8.0-SNAPSHOT 5242 .jar//io.lumine.mythic.core.skills.placeholders.PlaceholderParser.parse(PlaceholderParser.java:131)
[13:12:45 WARN]:        at MythicMobs-5.8.0-SNAPSHOT 5242 .jar//io.lumine.mythic.core.skills.placeholders.parsers.PlaceholderDoubleImpl.get(PlaceholderDoubleImpl.java:51)
[13:12:45 WARN]:        at MythicMobs-5.8.0-SNAPSHOT 5242 .jar//io.lumine.mythic.core.skills.mechanics.DamageMechanic.castAtEntity(DamageMechanic.java:44)
[13:12:45 WARN]:        at MythicMobs-5.8.0-SNAPSHOT 5242 .jar//io.lumine.mythic.core.skills.SkillMechanic.lambda$executeTargetedEntitySkill$16(SkillMechanic.java:592)
[13:12:45 WARN]:        at java.base/java.lang.Iterable.forEach(Iterable.java:75)
[13:12:45 WARN]:        at MythicMobs-5.8.0-SNAPSHOT 5242 .jar//io.lumine.mythic.core.skills.SkillMechanic.executeTargetedEntitySkill(SkillMechanic.java:588)
[13:12:45 WARN]:        at MythicMobs-5.8.0-SNAPSHOT 5242 .jar//io.lumine.mythic.core.skills.SkillMechanic.lambda$executeSkills$12(SkillMechanic.java:544)
[13:12:45 WARN]:        at MythicMobs-5.8.0-SNAPSHOT 5242 .jar//io.lumine.mythic.bukkit.utils.Delegates$RunnableToSupplier.get(Delegates.java:121)
[13:12:45 WARN]:        at MythicMobs-5.8.0-SNAPSHOT 5242 .jar//io.lumine.mythic.bukkit.utils.promise.LuminePromise$SupplyRunnable.run(LuminePromise.java:654)
[13:12:45 WARN]:        at MythicMobs-5.8.0-SNAPSHOT 5242 .jar//io.lumine.mythic.bukkit.utils.tasks.LumineExecutors$SchedulerWrappedRunnable.run(LumineExecutors.java:70)
[13:12:45 WARN]:        at MythicMobs-5.8.0-SNAPSHOT 5242 .jar//io.lumine.mythic.bukkit.utils.promise.LuminePromise.executeSync(LuminePromise.java:133)
[13:12:45 WARN]:        at MythicMobs-5.8.0-SNAPSHOT 5242 .jar//io.lumine.mythic.bukkit.utils.promise.LuminePromise.supplySync(LuminePromise.java:264)
[13:12:45 WARN]:        at MythicMobs-5.8.0-SNAPSHOT 5242 .jar//io.lumine.mythic.bukkit.utils.promise.Promise.supply(Promise.java:435)
[13:12:45 WARN]:        at MythicMobs-5.8.0-SNAPSHOT 5242 .jar//io.lumine.mythic.bukkit.utils.promise.Promise.supplying(Promise.java:104)
[13:12:45 WARN]:        at MythicMobs-5.8.0-SNAPSHOT 5242 .jar//io.lumine.mythic.bukkit.utils.tasks.TaskScheduler.run(TaskScheduler.java:63)
[13:12:45 WARN]:        at MythicMobs-5.8.0-SNAPSHOT 5242 .jar//io.lumine.mythic.core.skills.SkillMechanic.runMechanic(SkillMechanic.java:579)
[13:12:45 WARN]:        at MythicMobs-5.8.0-SNAPSHOT 5242 .jar//io.lumine.mythic.core.skills.SkillMechanic.executeSkills(SkillMechanic.java:544)
[13:12:45 WARN]:        at MythicMobs-5.8.0-SNAPSHOT 5242 .jar//io.lumine.mythic.core.skills.SkillMechanic.execute(SkillMechanic.java:461)
[13:12:45 WARN]:        at MythicMobs-5.8.0-SNAPSHOT 5242 .jar//io.lumine.mythic.core.skills.MetaSkill.execute(MetaSkill.java:458)
[13:12:45 WARN]:        at MythicMobs-5.8.0-SNAPSHOT 5242 .jar//io.lumine.mythic.core.skills.MetaSkill.execute(MetaSkill.java:414)
[13:12:45 WARN]:        at MythicMobs-5.8.0-SNAPSHOT 5242 .jar//io.lumine.mythic.core.skills.mechanics.TotemMechanic$TotemTracker.doHit(TotemMechanic.java:135)
[13:12:45 WARN]:        at MythicMobs-5.8.0-SNAPSHOT 5242 .jar//io.lumine.mythic.core.skills.mechanics.TotemMechanic$TotemTracker.projectileTick(TotemMechanic.java:112)
[13:12:45 WARN]:        at MythicMobs-5.8.0-SNAPSHOT 5242 .jar//io.lumine.mythic.core.skills.projectiles.Projectile$ProjectileTracker.run(Projectile.java:685)
[13:12:45 WARN]:        at MythicMobs-5.8.0-SNAPSHOT 5242 .jar//io.lumine.mythic.bukkit.utils.Delegates$RunnableToConsumer.accept(Delegates.java:93)
[13:12:45 WARN]:        at MythicMobs-5.8.0-SNAPSHOT 5242 .jar//io.lumine.mythic.bukkit.utils.Schedulers$LumineTask.run(Schedulers.java:184)
[13:12:45 WARN]:        at org.bukkit.craftbukkit.scheduler.CraftTask.run(CraftTask.java:86)
[13:12:45 WARN]:        at org.bukkit.craftbukkit.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:475)
[13:12:45 WARN]:        at net.minecraft.server.MinecraftServer.tickChildren(MinecraftServer.java:1726)
[13:12:45 WARN]:        at net.minecraft.server.dedicated.DedicatedServer.tickChildren(DedicatedServer.java:473)
[13:12:45 WARN]:        at net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:1598)
[13:12:45 WARN]:        at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1304)
[13:12:45 WARN]:        at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:330)
[13:12:45 WARN]:        at java.base/java.lang.Thread.run(Thread.java:1570)