Фикс An internal error occurred while attempting to perform this command

Установил плагин StreakRewards. Пишу команду и выбивает ошибку, права настроены, а в конфиге не лазил. В консоле пишет вот такую ошибку. Помогите пожалуйста



org.bukkit.command.CommandException: Unhandled exception executing command 'daily' in plugin StreakRewards v1.5.5
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[craftbukkit-1.12.2.jar:git-Bukkit-e60fc34]
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:140) ~[craftbukkit-1.12.2.jar:git-Bukkit-e60fc34]
at org.bukkit.craftbukkit.v1_12_R1.CraftServer.dispatchCommand(CraftServer.java:628) ~[craftbukkit-1.12.2.jar:git-Bukkit-e60fc34]
at net.minecraft.server.v1_12_R1.PlayerConnection.handleCommand(PlayerConnection.java:1340) [?:git-Bukkit-e60fc34]
at net.minecraft.server.v1_12_R1.PlayerConnection.a(PlayerConnection.java:1200) [?:git-Bukkit-e60fc34]
at net.minecraft.server.v1_12_R1.PacketPlayInChat.a(SourceFile:37) [craftbukkit-1.12.2.jar:git-Bukkit-e60fc34]
at net.minecraft.server.v1_12_R1.PacketPlayInChat.a(SourceFile:9) [craftbukkit-1.12.2.jar:git-Bukkit-e60fc34]
at net.minecraft.server.v1_12_R1.PlayerConnectionUtils$1..(SourceFile:13) [craftbukkit-1.12.2.jar:git-Bukkit-e60fc34]
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_271]
at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_271]
at net.minecraft.server.v1_12_R1.SystemUtils.a(SourceFile:46) [craftbukkit-1.12.2.jar:git-Bukkit-e60fc34]
at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:696) [craftbukkit-1.12.2.jar:git-Bukkit-e60fc34]
at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:371) [craftbukkit-1.12.2.jar:git-Bukkit-e60fc34]
at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:651) [craftbukkit-1.12.2.jar:git-Bukkit-e60fc34]
at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:555) [craftbukkit-1.12.2.jar:git-Bukkit-e60fc34]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_271]
Caused by: java.lang.NullPointerException
at org.bukkit.inventory.ItemStack.<init>(ItemStack.java:94) ~[craftbukkit-1.12.2.jar:git-Bukkit-e60fc34]
at me.gaagjescraft.network.team.streakrewards.menus.RewardMenu.openMenu(RewardMenu.java:183) ~[?:?]
at me.gaagjescraft.network.team.streakrewards.commands.DailyCommand.onCommand(DailyCommand.java:185) ~[?:?]
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[craftbukkit-1.12.2.jar:git-Bukkit-e60fc34]