Server won't let players join

[RobloxIsDead]

java.lang.IllegalArgumentException: Duplicate id value for 27!

	at net.minecraft.entity.DataWatcher.func_75682_a(SourceFile:64) ~[te.class:?]

	at ckathode.weaponmod.PlayerWeaponData.initPlayerWeaponData(PlayerWeaponData.java:35) ~[PlayerWeaponData.class:?]

	at ckathode.weaponmod.WMCommonEventHandler.onEntityConstructed(WMCommonEventHandler.java:14) ~[WMCommonEventHandler.class:?]

	at cpw.mods.fml.common.eventhandler.ASMEventHandler_566_WMCommonEventHandler_onEntityConstructed_EntityConstructing.invoke(.dynamic) ~[?:?]

	at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:54) ~[ASMEventHandler.class:1.7.10-R0.1-SNAPSHOT]

	at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:140) [EventBus.class:1.7.10-R0.1-SNAPSHOT]

	at net.minecraft.entity.Entity.<init>(Entity.java:235) [sa.class:?]

	at net.minecraft.entity.EntityLivingBase.<init>(EntityLivingBase.java:141) [sv.class:?]

	at net.minecraft.entity.player.EntityPlayer.<init>(EntityPlayer.java:168) [yz.class:?]

	at net.minecraft.entity.player.EntityPlayerMP.<init>(EntityPlayerMP.java:187) [mw.class:?]

	at net.minecraft.server.management.ServerConfigurationManager.attemptLogin(ServerConfigurationManager.java:528) [oi.class:?]

	at net.minecraft.server.network.NetHandlerLoginServer.func_147326_c(NetHandlerLoginServer.java:128) [nn.class:?]

	at net.minecraft.server.network.NetHandlerLoginServer.func_147233_a(NetHandlerLoginServer.java:68) [nn.class:?]

	at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:248) [ej.class:?]

	at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:173) [nc.class:?]

	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:991) [MinecraftServer.class:?]

	at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:431) [lt.class:?]

	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:809) [MinecraftServer.class:?]

	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:669) [MinecraftServer.class:?]

	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_72]

[16:28:02] [Server thread/ERROR]: Index: 11 Listeners:

[16:28:02] [Server thread/ERROR]: 0: NORMAL

[16:28:02] [Server thread/ERROR]: 1: ASM: com.darkona.adventurebackpack.handlers.PlayerEventHandler@a5d6755 registerBackpackProperty(Lnet/minecraftforge/event/entity/EntityEvent$EntityConstructing;)V

[16:28:02] [Server thread/ERROR]: 2: ASM: net.nevermine.event.player.EntityConstructorEvent@20962a75 onEntityConstructing(Lnet/minecraftforge/event/entity/EntityEvent$EntityConstructing;)V

[16:28:02] [Server thread/ERROR]: 3: ASM: com.brandon3055.draconicevolution.common.handler.MinecraftForgeEventHandler@22b08c19 onEntityConstructing(Lnet/minecraftforge/event/entity/EntityEvent$EntityConstructing;)V

[16:28:02] [Server thread/ERROR]: 4: ASM: micdoodle8.mods.galacticraft.core.entities.player.GCPlayerHandler@362ea2c5 onEntityConstructing(Lnet/minecraftforge/event/entity/EntityEvent$EntityConstructing;)V

[16:28:02] [Server thread/ERROR]: 5: ASM: micdoodle8.mods.galacticraft.planets.asteroids.entities.player.AsteroidsPlayerHandler@2e1ca68d onEntityConstructing(Lnet/minecraftforge/event/entity/EntityEvent$EntityConstructing;)V

[16:28:02] [Server thread/ERROR]: 6: ASM: tconstruct.armor.player.TPlayerHandler@429a22b3 onEntityConstructing(Lnet/minecraftforge/event/entity/EntityEvent$EntityConstructing;)V

[16:28:02] [Server thread/ERROR]: 7: ASM: stevekung.mods.moreplanets.core.event.MorePlanetEvents@49cf8a80 onEntityConstructing(Lnet/minecraftforge/event/entity/EntityEvent$EntityConstructing;)V

[16:28:02] [Server thread/ERROR]: 8: ASM: openblocks.enchantments.FlimFlamEnchantmentsHandler@2b13a98c onEntityConstruct(Lnet/minecraftforge/event/entity/EntityEvent$EntityConstructing;)V

[16:28:02] [Server thread/ERROR]: 9: ASM: com.inventorypets.InventoryPetsEventHandler@6c8390a3 onEntityConstructing(Lnet/minecraftforge/event/entity/EntityEvent$EntityConstructing;)V

[16:28:02] [Server thread/ERROR]: 10: ASM: matteroverdrive.handler.EntityHandler@31d712dc onEntityConstructing(Lnet/minecraftforge/event/entity/EntityEvent$EntityConstructing;)V

[16:28:02] [Server thread/ERROR]: 11: ASM: ckathode.weaponmod.WMCommonEventHandler@42967c29 onEntityConstructed(Lnet/minecraftforge/event/entity/EntityEvent$EntityConstructing;)V

java.lang.IllegalArgumentException: Duplicate id value for 27!

	at net.minecraft.entity.DataWatcher.func_75682_a(SourceFile:64) ~[te.class:?]

	at ckathode.weaponmod.PlayerWeaponData.initPlayerWeaponData(PlayerWeaponData.java:35) ~[PlayerWeaponData.class:?]

	at ckathode.weaponmod.WMCommonEventHandler.onEntityConstructed(WMCommonEventHandler.java:14) ~[WMCommonEventHandler.class:?]

	at cpw.mods.fml.common.eventhandler.ASMEventHandler_566_WMCommonEventHandler_onEntityConstructed_EntityConstructing.invoke(.dynamic) ~[?:?]

	at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:54) ~[ASMEventHandler.class:1.7.10-R0.1-SNAPSHOT]

	at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:140) ~[EventBus.class:1.7.10-R0.1-SNAPSHOT]

	at net.minecraft.entity.Entity.<init>(Entity.java:235) ~[sa.class:?]

	at net.minecraft.entity.EntityLivingBase.<init>(EntityLivingBase.java:141) ~[sv.class:?]

	at net.minecraft.entity.player.EntityPlayer.<init>(EntityPlayer.java:168) ~[yz.class:?]

	at net.minecraft.entity.player.EntityPlayerMP.<init>(EntityPlayerMP.java:187) ~[mw.class:?]

	at net.minecraft.server.management.ServerConfigurationManager.attemptLogin(ServerConfigurationManager.java:528) ~[oi.class:?]

	at net.minecraft.server.network.NetHandlerLoginServer.func_147326_c(NetHandlerLoginServer.java:128) ~[nn.class:?]

	at net.minecraft.server.network.NetHandlerLoginServer.func_147233_a(NetHandlerLoginServer.java:68) ~[nn.class:?]

	at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:248) ~[ej.class:?]

	at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:173) [nc.class:?]

	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:991) [MinecraftServer.class:?]

	at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:431) [lt.class:?]

	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:809) [MinecraftServer.class:?]

	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:669) [MinecraftServer.class:?]

	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_72]

java.lang.IllegalStateException: Unexpected change in protocol

	at org.apache.commons.lang3.Validate.validState(Validate.java:826) ~[Validate.class:?]

	at net.minecraft.server.network.NetHandlerLoginServer.func_147232_a(NetHandlerLoginServer.java:155) ~[nn.class:?]

	at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:226) ~[ej.class:?]

	at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:173) [nc.class:?]

	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:991) [MinecraftServer.class:?]

	at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:431) [lt.class:?]

	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:809) [MinecraftServer.class:?]

	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:669) [MinecraftServer.class:?]

	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_72]

   logs/2019-03-06-1.log.gz logs/2019-03-06-2.log.gz logs/2019-03-06-3.log.gz logs/2019-03-06-4.log.gz logs/2019-03-06-5.log.gz logs/2019-03-06-6.log.gz logs/2019-03-06-7.log.gz logs/2019-03-07-1.log.gz logs/2019-03-07-2.log.gz logs/2019-03-07-3.log.gz logs/2019-03-07-4.log.gz logs/2019-03-07-5.log.gz logs/2019-03-07-6.log.gz logs/2019-03-07-7.log.gz logs/CustomNPCs-1.log logs/CustomNPCs-2.log logs/CustomNPCs-3.log logs/CustomNPCs-latest.log logs/fml-junk-earlystartup.log logs/fml-server-1.log logs/fml-server-2.log logs/fml-server-3.log logs/fml-server-latest.log logs/latest.log     crash-reports/crash-2019-03-06_02.30.42-server.txt crash-reports/crash-2019-03-06_02.30.59-server.txt crash-reports/crash-2019-03-06_02.31.16-server.txt crash-reports/crash-2019-03-06_02.31.33-server.txt crash-reports/crash-2019-03-06_02.31.50-server.txt crash-reports/crash-2019-03-06_02.32.07-server.txt crash-reports/crash-2019-03-06_02.32.24-server.txt crash-reports/crash-2019-03-06_02.32.42-server.txt crash-reports/crash-2019-03-06_02.32.59-server.txt crash-reports/crash-2019-03-06_02.33.16-server.txt crash-reports/crash-2019-03-06_02.33.33-server.txt crash-reports/crash-2019-03-06_02.33.50-server.txt crash-reports/crash-2019-03-06_02.34.07-server.txt crash-reports/crash-2019-03-06_02.34.24-server.txt crash-reports/crash-2019-03-06_02.34.41-server.txt crash-reports/crash-2019-03-06_02.34.59-server.txt crash-reports/crash-2019-03-06_02.35.15-server.txt crash-reports/crash-2019-03-06_02.35.32-server.txt crash-reports/crash-2019-03-06_02.35.49-server.txt crash-reports/crash-2019-03-06_02.36.06-server.txt crash-reports/crash-2019-03-06_02.36.23-server.txt crash-reports/crash-2019-03-06_02.36.40-server.txt crash-reports/crash-2019-03-06_02.36.57-server.txt crash-reports/crash-2019-03-06_02.37.14-server.txt crash-reports/crash-2019-03-06_02.37.31-server.txt crash-reports/crash-2019-03-06_02.37.49-server.txt crash-reports/crash-2019-03-06_02.38.05-server.txt crash-reports/crash-2019-03-06_02.53.32-server.txt crash-reports/crash-2019-03-06_02.53.53-server.txt crash-reports/crash-2019-03-06_03.04.05-server.txt crash-reports/crash-2019-03-06_03.04.26-server.txt crash-reports/crash-2019-03-06_03.34.51-server.txt crash-reports/crash-2019-03-06_03.35.13-server.txt crash-reports/crash-2019-03-06_03.36.51-server.txt crash-reports/crash-2019-03-06_03.37.13-server.txt crash-reports/crash-2019-03-06_03.42.47-server.txt crash-reports/crash-2019-03-06_03.43.08-server.txt crash-reports/crash-2019-03-06_03.43.29-server.txt crash-reports/crash-2019-03-06_03.43.51-server.txt crash-reports/crash-2019-03-06_03.49.42-server.txt crash-reports/crash-2019-03-06_03.50.25-server.txt crash-reports/crash-2019-03-06_17.06.30-server.txt crash-reports/crash-2019-03-06_17.07.13-server.txt crash-reports/crash-2019-03-06_22.55.38-server.txt