TNTRun ERROR in CONSOLE

Could not pass event PlayerToggleFlightEvent to TNTRun v6.3.2
org.bukkit.event.EventException
        at me.incomprehendable.dev.pwp.transparentlisteners.PerWorldPluginLoader$1.execute(PerWorldPluginLoader.java:118) ~[?:?]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[server.jar:git-Spigot-90f61bc-29e1d72]
        at me.incomprehendable.dev.pwp.transparentlisteners.PWPRegisteredListener.callEvent(PWPRegisteredListener.java:28) [PerWorldPlugins.jar:?]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [server.jar:git-Spigot-90f61bc-29e1d72]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [server.jar:git-Spigot-90f61bc-29e1d72]
        at net.minecraft.server.v1_10_R1.PlayerConnection.a(PlayerConnection.java:2126) [server.jar:git-Spigot-90f61bc-29e1d72]
        at net.minecraft.server.v1_10_R1.PacketPlayInAbilities.a(SourceFile:70) [server.jar:git-Spigot-90f61bc-29e1d72]
        at net.minecraft.server.v1_10_R1.PacketPlayInAbilities.a(SourceFile:9) [server.jar:git-Spigot-90f61bc-29e1d72]
        at net.minecraft.server.v1_10_R1.PlayerConnectionUtils$1.run(SourceFile:13) [server.jar:git-Spigot-90f61bc-29e1d72]
        at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_101]
        at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_101]
        at net.minecraft.server.v1_10_R1.SystemUtils.a(SourceFile:45) [server.jar:git-Spigot-90f61bc-29e1d72]
        at net.minecraft.server.v1_10_R1.MinecraftServer.D(MinecraftServer.java:732) [server.jar:git-Spigot-90f61bc-29e1d72]
        at net.minecraft.server.v1_10_R1.DedicatedServer.D(DedicatedServer.java:400) [server.jar:git-Spigot-90f61bc-29e1d72]
        at net.minecraft.server.v1_10_R1.MinecraftServer.C(MinecraftServer.java:668) [server.jar:git-Spigot-90f61bc-29e1d72]
        at net.minecraft.server.v1_10_R1.MinecraftServer.run(MinecraftServer.java:567) [server.jar:git-Spigot-90f61bc-29e1d72]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_101]
Caused by: java.lang.IllegalArgumentException: Cannot make player fly if getAllowFlight() is false
        at org.bukkit.craftbukkit.v1_10_R1.entity.CraftPlayer.setFlying(CraftPlayer.java:1161) ~[server.jar:git-Spigot-90f61bc-29e1d72]
        at tntrun.eventhandler.RestrictionHandler.onFly(RestrictionHandler.java:287) ~[?:?]
        at sun.reflect.GeneratedMethodAccessor334.invoke(Unknown Source) ~[?:?]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_101]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_101]
        at me.incomprehendable.dev.pwp.transparentlisteners.PerWorldPluginLoader$1.execute(PerWorldPluginLoader.java:116) ~[?:?]