[22:07:46] [Server thread/ERROR]: Could not pass event PlayerInteractEvent to ProPractice v3.0.4
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[minecraft_server.jar:git-PaperSpigot-"8b18730"]
	at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:78) ~[minecraft_server.jar:git-PaperSpigot-"8b18730"]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[minecraft_server.jar:git-PaperSpigot-"8b18730"]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:501) [minecraft_server.jar:git-PaperSpigot-"8b18730"]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:486) [minecraft_server.jar:git-PaperSpigot-"8b18730"]
	at org.bukkit.craftbukkit.v1_8_R3.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:228) [minecraft_server.jar:git-PaperSpigot-"8b18730"]
	at org.bukkit.craftbukkit.v1_8_R3.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:195) [minecraft_server.jar:git-PaperSpigot-"8b18730"]
	at org.bukkit.craftbukkit.v1_8_R3.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:191) [minecraft_server.jar:git-PaperSpigot-"8b18730"]
	at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:721) [minecraft_server.jar:git-PaperSpigot-"8b18730"]
	at net.minecraft.server.v1_8_R3.PacketPlayInBlockPlace.a(PacketPlayInBlockPlace.java:52) [minecraft_server.jar:git-PaperSpigot-"8b18730"]
	at net.minecraft.server.v1_8_R3.PacketPlayInBlockPlace.a(PacketPlayInBlockPlace.java:1) [minecraft_server.jar:git-PaperSpigot-"8b18730"]
	at net.minecraft.server.v1_8_R3.PlayerConnectionUtils$1.run(SourceFile:13) [minecraft_server.jar:git-PaperSpigot-"8b18730"]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_111]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_111]
	at net.minecraft.server.v1_8_R3.SystemUtils.a(SourceFile:44) [minecraft_server.jar:git-PaperSpigot-"8b18730"]
	at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:774) [minecraft_server.jar:git-PaperSpigot-"8b18730"]
	at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:378) [minecraft_server.jar:git-PaperSpigot-"8b18730"]
	at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:713) [minecraft_server.jar:git-PaperSpigot-"8b18730"]
	at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:616) [minecraft_server.jar:git-PaperSpigot-"8b18730"]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_111]
Caused by: java.lang.ClassCastException: java.util.HashMap cannot be cast to java.util.Collection
	at com.comphenix.protocol.injector.EntityUtilities.updateEntity(EntityUtilities.java:98) ~[?:?]
	at com.comphenix.protocol.injector.PacketFilterManager.updateEntity(PacketFilterManager.java:977) ~[?:?]
	at net.propvp.practice.utils.EntityHider.showEntity(EntityHider.java:257) ~[?:?]
	at net.propvp.practice.utils.EntityHider.showAllPlayers(EntityHider.java:315) ~[?:?]
	at net.propvp.practice.listener.MiscListener.onPlayerHider(MiscListener.java:25) ~[?:?]
	at sun.reflect.GeneratedMethodAccessor449.invoke(Unknown Source) ~[?:?]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_111]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_111]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:300) ~[minecraft_server.jar:git-PaperSpigot-"8b18730"]
	... 19 more