Error

[13:37:16 WARN]: [TuSKe] Task #187 for TuSKe v1.8.2 generated an exception
java.lang.IllegalArgumentException: Permission name cannot be null
        at org.bukkit.permissions.PermissibleBase.addAttachment(PermissibleBase.java:197) ~[spigot.jar:git-Spigot-3d850ec-809c399]
        at org.bukkit.craftbukkit.v1_12_R1.entity.CraftHumanEntity.addAttachment(CraftHumanEntity.java:128) ~[spigot.jar:git-Spigot-3d850ec-809c399]
        at com.github.tukenuke.tuske.util.CommandUtils.runCommand(CommandUtils.java:37) ~[?:?]
        at com.github.tukenuke.tuske.sections.gui.EffFormatGUI.lambda$execute$0(EffFormatGUI.java:132) ~[?:?]
        at com.github.tukenuke.tuske.manager.gui.GUI.run(GUI.java:29) ~[?:?]
        at com.github.tukenuke.tuske.manager.gui.GUIManager$1.lambda$onClick$0(GUIManager.java:146) ~[?:?]
        at org.bukkit.craftbukkit.v1_12_R1.scheduler.CraftTask.run(CraftTask.java:71) ~[spigot.jar:git-Spigot-3d850ec-809c399]
        at org.bukkit.craftbukkit.v1_12_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:353) [spigot.jar:git-Spigot-3d850ec-809c399]
        at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:739) [spigot.jar:git-Spigot-3d850ec-809c399]
        at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:406) [spigot.jar:git-Spigot-3d850ec-809c399]
        at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:679) [spigot.jar:git-Spigot-3d850ec-809c399]
        at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:577) [spigot.jar:git-Spigot-3d850ec-809c399]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_161]
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