[18:46:39 ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'tags' in plugin ImmortalTags v1.0.3
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:47) ~[patched_1.15.1.jar:git-Paper-42]
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:159) ~[patched_1.15.1.jar:git-Paper-42]
at org.bukkit.craftbukkit.v1_15_R1.CraftServer.dispatchCommand(CraftServer.java:740) ~[patched_1.15.1.jar:git-Paper-42]
at net.minecraft.server.v1_15_R1.PlayerConnection.handleCommand(PlayerConnection.java:1820) ~[patched_1.15.1.jar:git-Paper-42]
at net.minecraft.server.v1_15_R1.PlayerConnection.a(PlayerConnection.java:1628) ~[patched_1.15.1.jar:git-Paper-42]
at net.minecraft.server.v1_15_R1.PacketPlayInChat.a(PacketPlayInChat.java:47) ~[patched_1.15.1.jar:git-Paper-42]
at net.minecraft.server.v1_15_R1.PacketPlayInChat.a(PacketPlayInChat.java:5) ~[patched_1.15.1.jar:git-Paper-42]
at net.minecraft.server.v1_15_R1.PlayerConnectionUtils.lambda$ensureMainThread$0(PlayerConnectionUtils.java:23) ~[patched_1.15.1.jar:git-Paper-42]
at net.minecraft.server.v1_15_R1.TickTask.run(SourceFile:18) ~[patched_1.15.1.jar:git-Paper-42]
at net.minecraft.server.v1_15_R1.IAsyncTaskHandler.executeTask(IAsyncTaskHandler.java:136) ~[patched_1.15.1.jar:git-Paper-42]
at net.minecraft.server.v1_15_R1.IAsyncTaskHandlerReentrant.executeTask(SourceFile:23) ~[patched_1.15.1.jar:git-Paper-42]
at net.minecraft.server.v1_15_R1.IAsyncTaskHandler.executeNext(IAsyncTaskHandler.java:109) ~[patched_1.15.1.jar:git-Paper-42]
at net.minecraft.server.v1_15_R1.MinecraftServer.aZ(MinecraftServer.java:1037) ~[patched_1.15.1.jar:git-Paper-42]
at net.minecraft.server.v1_15_R1.MinecraftServer.executeNext(MinecraftServer.java:1030) ~[patched_1.15.1.jar:git-Paper-42]
at net.minecraft.server.v1_15_R1.IAsyncTaskHandler.executeAll(IAsyncTaskHandler.java:95) ~[patched_1.15.1.jar:git-Paper-42]
at net.minecraft.server.v1_15_R1.MinecraftServer.a(MinecraftServer.java:1166) ~[patched_1.15.1.jar:git-Paper-42]
at net.minecraft.server.v1_15_R1.MinecraftServer.run(MinecraftServer.java:933) ~[patched_1.15.1.jar:git-Paper-42]
at java.lang.Thread.run(Thread.java:834) [?:?]
Caused by: java.lang.IllegalArgumentException: No enum constant org.bukkit.Material.STAINED_GLASS_PANE
at java.lang.Enum.valueOf(Enum.java:240) ~[?:?]
at org.bukkit.Material.valueOf(Material.java:84) ~[patched_1.15.1.jar:git-Paper-42]
at me.lukeben.tags.menus.TagsGUI.lambda$buildBasicGUI$0(TagsGUI.java:43) ~[?:?]
at java.lang.Iterable.forEach(Iterable.java:75) ~[?:?]
at me.lukeben.tags.menus.TagsGUI.buildBasicGUI(TagsGUI.java:42) ~[?:?]
at me.lukeben.tags.commands.TagCommand.onCommand(TagCommand.java:44) ~[?:?]
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45) ~[patched_1.15.1.jar:git-Paper-42]
... 17 more