Bug About Capes

[16:57:17 INFO]: Nine issued server command: /cape
[16:57:17 ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'cape' in plugin Capes v1.8
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:47) ~[patched_1.10.2.jar:git-Paper-828]
	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:151) ~[patched_1.10.2.jar:git-Paper-828]
	at org.bukkit.craftbukkit.v1_10_R1.CraftServer.dispatchCommand(CraftServer.java:665) ~[patched_1.10.2.jar:git-Paper-828]
	at net.minecraft.server.v1_10_R1.PlayerConnection.handleCommand(PlayerConnection.java:1389) [patched_1.10.2.jar:git-Paper-828]
	at net.minecraft.server.v1_10_R1.PlayerConnection.a(PlayerConnection.java:1194) [patched_1.10.2.jar:git-Paper-828]
	at net.minecraft.server.v1_10_R1.PacketPlayInChat.a(PacketPlayInChat.java:45) [patched_1.10.2.jar:git-Paper-828]
	at net.minecraft.server.v1_10_R1.PacketPlayInChat.a(PacketPlayInChat.java:5) [patched_1.10.2.jar:git-Paper-828]
	at net.minecraft.server.v1_10_R1.PlayerConnectionUtils$1.run(SourceFile:13) [patched_1.10.2.jar:git-Paper-828]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_91]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_91]
	at net.minecraft.server.v1_10_R1.SystemUtils.a(SourceFile:45) [patched_1.10.2.jar:git-Paper-828]
	at net.minecraft.server.v1_10_R1.MinecraftServer.D(MinecraftServer.java:791) [patched_1.10.2.jar:git-Paper-828]
	at net.minecraft.server.v1_10_R1.DedicatedServer.D(DedicatedServer.java:404) [patched_1.10.2.jar:git-Paper-828]
	at net.minecraft.server.v1_10_R1.MinecraftServer.C(MinecraftServer.java:725) [patched_1.10.2.jar:git-Paper-828]
	at net.minecraft.server.v1_10_R1.MinecraftServer.run(MinecraftServer.java:624) [patched_1.10.2.jar:git-Paper-828]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
Caused by: java.lang.NoClassDefFoundError: org/bukkit/craftbukkit/v1_8_R3/entity/CraftArmorStand
	at tfw.Capes.General.Capes.equipCape(Capes.java:322) ~[?:?]
	at tfw.Capes.General.Capes.capeInHand(Capes.java:184) ~[?:?]
	at tfw.Capes.General.Capes.onCommand(Capes.java:128) ~[?:?]
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45) ~[patched_1.10.2.jar:git-Paper-828]
	... 15 more
Caused by: java.lang.ClassNotFoundException: org.bukkit.craftbukkit.v1_8_R3.entity.CraftArmorStand
	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:92) ~[patched_1.10.2.jar:git-Paper-828]
	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:87) ~[patched_1.10.2.jar:git-Paper-828]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_91]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_91]
	at tfw.Capes.General.Capes.equipCape(Capes.java:322) ~[?:?]
	at tfw.Capes.General.Capes.capeInHand(Capes.java:184) ~[?:?]
	at tfw.Capes.General.Capes.onCommand(Capes.java:128) ~[?:?]
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45) ~[patched_1.10.2.jar:git-Paper-828]
	... 15 more