[19:05:38 FATAL]: Error executing task
 java.util.concurrent.ExecutionException: java.lang.IllegalStateException: This is not a JSON Array.
        at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[?:1.8.0_282]
        at java.util.concurrent.FutureTask.get(FutureTask.java:192) ~[?:1.8.0_282]
        at net.minecraft.util.Util.func_181617_a(SourceFile:47) [h.class:?]
        at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:846) [MinecraftServer.class:?]
        at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:467) [nz.class:?]
        at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:784) [MinecraftServer.class:?]
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:630) [MinecraftServer.class:?]
        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_282]
Caused by: java.lang.IllegalStateException: This is not a JSON Array.
        at com.google.gson.JsonElement.getAsJsonArray(JsonElement.java:106) ~[JsonElement.class:?]
        at fr.nicolasbrg.NBGames.NBGamesUI.OpenGuiGames(NBGamesUI.java:167) ~[NBGamesUI.class:null]
        at fr.nicolasbrg.NBGames.NBGamesUI.lambda$execute$1(NBGamesUI.java:102) ~[NBGamesUI.class:null]
        at ca.landonjw.gooeylibs.inventory.implementation.BaseButton.onClick(BaseButton.java:85) ~[BaseButton.class:?]
        at ca.landonjw.gooeylibs.inventory.internal.UIContainer.func_184996_a(UIContainer.java:98) ~[UIContainer.class:?]
        at net.minecraft.network.NetHandlerPlayServer.func_147351_a(NetHandlerPlayServer.java:2128) ~[pa.class:?]
        at net.minecraft.network.play.client.CPacketClickWindow.func_148833_a(CPacketClickWindow.java:38) ~[lf.class:?]
        at net.minecraft.network.play.client.CPacketClickWindow.func_148833_a(CPacketClickWindow.java:12) ~[lf.class:?]
        at net.minecraft.network.PacketThreadUtil.lambda$checkThreadAndEnqueue$0(PacketThreadUtil.java:16) ~[hv.class:?]
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_282]
        at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_282]
        at net.minecraft.util.Util.func_181617_a(SourceFile:46) ~[h.class:?]