19:38:51] [Server thread/INFO] [minecraft/DedicatedServer]: Alphapowers joined the game >....
[19:38:51] [Netty Epoll Server IO #2/ERROR] [minecraft/ArgumentTypes]: Could not serialize net.minecraftforge.server.command.ModIdArgument@77703a7c (class net.minecraftforge.server.command.ModIdArgument) - will not be sent to client! >....
[19:38:51] [Netty Epoll Server IO #2/ERROR] [minecraft/ArgumentTypes]: Could not serialize net.minecraftforge.server.command.EnumArgument@798a59d3 (class net.minecraftforge.server.command.EnumArgument) - will not be sent to client! >....
rate limit exceeded
[19:38:56] [Server thread/FATAL] [ne.mi.co.ForgeMod/]: Preparing crash report with UUID ce060f77-dd35-4f95-a1e4-86e91ee1c40d >....
[19:38:56] [Server thread/ERROR] [minecraft/MinecraftServer]: Encountered an unexpected exception net.minecraft.crash.ReportedException: Ticking entity at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:851) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:283) ~[?:?] {re:classloading,pl:accesstransformer:B} at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:783) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.server.MinecraftServer.func_240802_v_(MinecraftServer.java:638) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.server.MinecraftServer.lambda$func_240784_a_$0(MinecraftServer.java:229) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at java.lang.Thread.run(Thread.java:748) [?:1.8.0_265] {} Caused by: java.lang.NoSuchMethodError: WolfShotz.Wyrmroost.entities.dragon.AbstractDragonEntity.func_184215_y(Lnet/minecraft/entity/Entity;)Z at WolfShotz.Wyrmroost.entities.dragon.helpers.ai.goals.ControlledAttackGoal.func_190102_a(ControlledAttackGoal.java:42) ~[?:1.2.4] {re:classloading} at net.minecraft.entity.ai.goal.MeleeAttackGoal.func_75246_d(MeleeAttackGoal.java:130) ~[?:?] {re:classloading} at WolfShotz.Wyrmroost.entities.dragon.helpers.ai.goals.ControlledAttackGoal.func_75246_d(ControlledAttackGoal.java:36) ~[?:1.2.4] {re:classloading} at net.minecraft.entity.ai.goal.PrioritizedGoal.func_75246_d(SourceFile:55) ~[?:?] {re:classloading} at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) ~[?:1.8.0_265] {} at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175) ~[?:1.8.0_265] {} at java.util.Iterator.forEachRemaining(Iterator.java:116) ~[?:1.8.0_265] {} at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801) ~[?:1.8.0_265] {} at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482) ~[?:1.8.0_265] {} at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472) ~[?:1.8.0_265] {} at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) ~[?:1.8.0_265] {} at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) ~[?:1.8.0_265] {} at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:1.8.0_265] {} at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:485) ~[?:1.8.0_265] {} at net.minecraft.entity.ai.goal.GoalSelector.func_75774_a(SourceFile:88) ~[?:?] {re:classloading,pl:accesstransformer:B} at net.minecraft.entity.MobEntity.func_70626_be(MobEntity.java:682) ~[?:?] {re:computing_frames,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.entity.LivingEntity.func_70636_d(LivingEntity.java:2411) ~[?:?] {re:computing_frames,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.entity.MobEntity.func_70636_d(MobEntity.java:488) ~[?:?] {re:computing_frames,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.entity.AgeableEntity.func_70636_d(SourceFile:127) ~[?:?] {re:classloading} at net.minecraft.entity.passive.AnimalEntity.func_70636_d(AnimalEntity.java:51) ~[?:?] {re:classloading,pl:runtimedistcleaner:A} at WolfShotz.Wyrmroost.entities.dragon.AbstractDragonEntity.func_70636_d(AbstractDragonEntity.java:237) ~[?:1.2.4] {re:classloading} at WolfShotz.Wyrmroost.entities.dragon.OWDrakeEntity.func_70636_d(OWDrakeEntity.java:135) ~[?:1.2.4] {re:classloading} at net.minecraft.entity.LivingEntity.func_70071_h_(LivingEntity.java:2158) ~[?:?] {re:computing_frames,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.entity.MobE
ntity.func_70071_h_(MobEntity.java:300) ~[?:?] {re:computing_frames,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at WolfShotz.Wyrmroost.entities.dragon.AbstractDragonEntity.func_70071_h_(AbstractDragonEntity.java:225) ~[?:1.2.4] {re:classloading} at net.minecraft.world.server.ServerWorld.func_217479_a(ServerWorld.java:606) ~[?:?] {re:classloading,pl:runtimedistcleaner:A} at net.minecraft.world.World.func_217390_a(World.java:554) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} at net.minecraft.world.server.ServerWorld.func_72835_b(ServerWorld.java:399) ~[?:?] {re:classloading,pl:runtimedistcleaner:A} at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:847) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A} ... 5 more >....
Command
Here you can send commands directly to the server.

Ive been having the same problem with the drake when its about to attack it freezes up and then boom a sever crash I would love it if this was fixed soon as yo be able to play with this mod its amazing and I hope all works out.

It appears that in newer forge versions a method I use in the attack goal no longer exists... for some reason. There isn't supposed to be breaking changes so that's cute. Will work something out soon

Is this crash related? https://hatebin.com/ysvactfhky

Looks to be, yes