100photos issued server command: /openaudio play server [DROPBOX LINK WITH DL=1]
[13:29:48 ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'openaudio' in plugin OpenAudio v1.6.3
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[spigot.jar:git-Spigot-b32c8f8-4d3bf20]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) ~[spigot.jar:git-Spigot-b32c8f8-4d3bf20]
        at org.bukkit.craftbukkit.v1_11_R1.CraftServer.dispatchCommand(CraftServer.java:650) ~[spigot.jar:git-Spigot-b32c8f8-4d3bf20]
        at net.minecraft.server.v1_11_R1.PlayerConnection.handleCommand(PlayerConnection.java:1344) [spigot.jar:git-Spigot-b32c8f8-4d3bf20]
        at net.minecraft.server.v1_11_R1.PlayerConnection.a(PlayerConnection.java:1179) [spigot.jar:git-Spigot-b32c8f8-4d3bf20]
        at net.minecraft.server.v1_11_R1.PacketPlayInChat.a(PacketPlayInChat.java:45) [spigot.jar:git-Spigot-b32c8f8-4d3bf20]
        at net.minecraft.server.v1_11_R1.PacketPlayInChat.a(PacketPlayInChat.java:1) [spigot.jar:git-Spigot-b32c8f8-4d3bf20]
        at net.minecraft.server.v1_11_R1.PlayerConnectionUtils$1.run(SourceFile:13) [spigot.jar:git-Spigot-b32c8f8-4d3bf20]
        at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_111]
        at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_111]
        at net.minecraft.server.v1_11_R1.SystemUtils.a(SourceFile:46) [spigot.jar:git-Spigot-b32c8f8-4d3bf20]
        at net.minecraft.server.v1_11_R1.MinecraftServer.D(MinecraftServer.java:739) [spigot.jar:git-Spigot-b32c8f8-4d3bf20]
        at net.minecraft.server.v1_11_R1.DedicatedServer.D(DedicatedServer.java:399) [spigot.jar:git-Spigot-b32c8f8-4d3bf20]
        at net.minecraft.server.v1_11_R1.MinecraftServer.C(MinecraftServer.java:675) [spigot.jar:git-Spigot-b32c8f8-4d3bf20]
        at net.minecraft.server.v1_11_R1.MinecraftServer.run(MinecraftServer.java:574) [spigot.jar:git-Spigot-b32c8f8-4d3bf20]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_111]
Caused by: java.lang.NullPointerException
        at me.mindgamesnl.openaudiomc.websocket.WsSender.Send_Ws_Packet_To_Client(WsSender.java:8) ~[?:?]
        at me.mindgamesnl.openaudiomc.websocket.WsSender.sendSmartJson(WsSender.java:25) ~[?:?]
        at me.mindgamesnl.openaudiomc.commands.Commands.onCommand(Commands.java:54) ~[?:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[spigot.jar:git-Spigot-b32c8f8-4d3bf20]
        ... 15 more