>welcomes reload
[18:01:49 INFO]: [PyroWelcomes] Disabling PyroWelcomes v2.2.1
[18:01:49 INFO]: [PyroWelcomes] Enabling PyroWelcomes v2.2.1
[18:01:49 WARN]: Enabled plugin with unregistered PluginClassLoader PyroWelcomes v2.2.1
[18:01:49 INFO]: PyroWelcomes has been successfully reloaded.
[18:01:53 INFO]: mrfloris issued server command: /points
[18:01:53 ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'welcomes' in plugin PyroWelcomes v2.2.1
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:48) ~[spigot-1.13.2.jar:git-Spigot-1a3504a-84f3da3]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) ~[spigot-1.13.2.jar:git-Spigot-1a3504a-84f3da3]
        at org.bukkit.craftbukkit.v1_13_R2.CraftServer.dispatchCommand(CraftServer.java:704) ~[spigot-1.13.2.jar:git-Spigot-1a3504a-84f3da3]
        at net.minecraft.server.v1_13_R2.PlayerConnection.handleCommand(PlayerConnection.java:1621) ~[spigot-1.13.2.jar:git-Spigot-1a3504a-84f3da3]
        at net.minecraft.server.v1_13_R2.PlayerConnection.a(PlayerConnection.java:1461) ~[spigot-1.13.2.jar:git-Spigot-1a3504a-84f3da3]
        at net.minecraft.server.v1_13_R2.PacketPlayInChat.a(PacketPlayInChat.java:45) ~[spigot-1.13.2.jar:git-Spigot-1a3504a-84f3da3]
        at net.minecraft.server.v1_13_R2.PacketPlayInChat.a(PacketPlayInChat.java:1) ~[spigot-1.13.2.jar:git-Spigot-1a3504a-84f3da3]
        at net.minecraft.server.v1_13_R2.PlayerConnectionUtils.lambda$0(PlayerConnectionUtils.java:9) ~[spigot-1.13.2.jar:git-Spigot-1a3504a-84f3da3]
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) [?:?]
        at java.util.concurrent.FutureTask.run(FutureTask.java:264) [?:?]
        at net.minecraft.server.v1_13_R2.SystemUtils.a(SourceFile:199) [spigot-1.13.2.jar:git-Spigot-1a3504a-84f3da3]
        at net.minecraft.server.v1_13_R2.MinecraftServer.b(MinecraftServer.java:896) [spigot-1.13.2.jar:git-Spigot-1a3504a-84f3da3]
        at net.minecraft.server.v1_13_R2.DedicatedServer.b(DedicatedServer.java:417) [spigot-1.13.2.jar:git-Spigot-1a3504a-84f3da3]
        at net.minecraft.server.v1_13_R2.MinecraftServer.a(MinecraftServer.java:831) [spigot-1.13.2.jar:git-Spigot-1a3504a-84f3da3]
        at net.minecraft.server.v1_13_R2.MinecraftServer.run(MinecraftServer.java:729) [spigot-1.13.2.jar:git-Spigot-1a3504a-84f3da3]
        at java.lang.Thread.run(Thread.java:834) [?:?]
Caused by: java.lang.IllegalArgumentException: Material cannot be null
        at org.apache.commons.lang.Validate.notNull(Validate.java:192) ~[spigot-1.13.2.jar:git-Spigot-1a3504a-84f3da3]
        at org.bukkit.inventory.ItemStack.<init>(ItemStack.java:71) ~[spigot-1.13.2.jar:git-Spigot-1a3504a-84f3da3]
        at org.bukkit.inventory.ItemStack.<init>(ItemStack.java:59) ~[spigot-1.13.2.jar:git-Spigot-1a3504a-84f3da3]
        at me.PyroTempus.PyroWelcomes.openWelcomeShop(PyroWelcomes.java:353) ~[?:?]
        at me.PyroTempus.PyroWelcomes.onCommand(PyroWelcomes.java:115) ~[?:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[spigot-1.13.2.jar:git-Spigot-1a3504a-84f3da3]
        ... 15 more