#15 problem with customoregen

plugin name:CustomOreGen 1.3.17 plugin version: 1.3.17 spigot version:1.14 issue description: i tryed to add on my server on aternos but it give me an error . Its added but when i mine coblestone isn't swaping. console errors: <pastebin links>[16:56:04] [Server thread/ERROR]: Error occurred while disabling CustomOreGen v1.3.17-SNAPSHOT (Is it up to date?) java.lang.NullPointerException: null at xyz.spaceio.customoregen.CustomOreGen.onDisable(CustomOreGen.java:124) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:265) ~[minecraft_server.jar:git-Spigot-c8d4cef-1fee35b] at org.bukkit.plugin.java.JavaPluginLoader.disablePlugin(JavaPluginLoader.java:377) [minecraft_server.jar:git-Spigot-c8d4cef-1fee35b] at org.bukkit.plugin.SimplePluginManager.disablePlugin(SimplePluginManager.java:437) [minecraft_server.jar:git-Spigot-c8d4cef-1fee35b] at xyz.spaceio.customoregen.CustomOreGen.loadHook(CustomOreGen.java:147) [CustomOreGen.jar:?]at xyz.spaceio.customoregen.CustomOreGen.onEnable(CustomOreGen.java:89) [CustomOreGen.jar:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) [minecraft_server.jar:git-Spigot-c8d4cef-1fee35b] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:352) [minecraft_server.jar:git-Spigot-c8d4cef-1fee35b] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:416) [minecraft_server.jar:git-Spigot-c8d4cef-1fee35b] at org.bukkit.craftbukkit.v1_14_R1.CraftServer.enablePlugin(CraftServer.java:458) [minecraft_server.jar:git-Spigot-c8d4cef-1fee35b] at org.bukkit.craftbukkit.v1_14_R1.CraftServer.enablePlugins(CraftServer.java:372) [minecraft_server.jar:git-Spigot-c8d4cef-1fee35b] at net.minecraft.server.v1_14_R1.MinecraftServer.a(MinecraftServer.java:440) [minecraft_server.jar:git-Spigot-c8d4cef-1fee35b] at net.minecraft.server.v1_14_R1.DedicatedServer.init(DedicatedServer.java:258) [minecraft_server.jar:git-Spigot-c8d4cef-1fee35b] at net.minecraft.server.v1_14_R1.MinecraftServer.run(MinecraftServer.java:761) [minecraft_server.jar:git-Spigot-c8d4cef-1fee35b] at java.lang.Thread.run(Thread.java:748) [?:1.8.0_222] [16:56:04] [Server thread/INFO]: [CustomOreGen] Loaded 2 generators! [16:56:04] [Server thread/ERROR]: Error occurred while enabling CustomOreGen v1.3.17-SNAPSHOT (Is it up to date?) org.bukkit.plugin.IllegalPluginAccessException: Plugin attempted to register task while disabled at org.bukkit.craftbukkit.v1_14_R1.scheduler.CraftScheduler.validate(CraftScheduler.java:447) ~[minecraft_server.jar:git-Spigot-c8d4cef-1fee35b] at org.bukkit.craftbukkit.v1_14_R1.scheduler.CraftScheduler.runTaskTimerAsynchronously(CraftScheduler.java:200) ~[minecraft_server.jar:git-Spigot-c8d4cef-1fee35b] at org.bukkit.craftbukkit.v1_14_R1.scheduler.CraftScheduler.runTaskTimerAsynchronously(CraftScheduler.java:196) ~[minecraft_server.jar:git-Spigot-c8d4cef-1fee35b] at org.bukkit.craftbukkit.v1_14_R1.scheduler.CraftScheduler.runTaskLaterAsynchronously(CraftScheduler.java:147) ~[minecraft_server.jar:git-Spigot-c8d4cef-1fee35b] at de.Linus122.SpaceIOMetrics.Metrics.&lt;init&gt;(Metrics.java:50) ~[?:?] at xyz.spaceio.customoregen.CustomOreGen.onEnable(CustomOreGen.java:119) ~[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[minecraft_server.jar:git-Spigot-c8d4cef-1fee35b] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:352) [minecraft_server.jar:git-Spigot-c8d4cef-1fee35b] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:416) [minecraft_server.jar:git-Spigot-c8d4cef-1fee35b] at org.bukkit.craftbukkit.v1_14_R1.CraftServer.enablePlugin(CraftServer.java:458) [minecraft_server.jar:git-Spigot-c8d4cef-1fee35b] at org.bukkit.craftbukkit.v1_14_R1.CraftServer.enablePlugins(CraftServer.java:372) [minecraft_server.jar:git-Spigot-c8d4cef-1fee35b] at net.minecraft.server.v1_14_R1.MinecraftServer.a(MinecraftServer.java:440) [minecraft_server.jar:git-Spigot-c8d4cef-1fee35b] at net.minecraft.server.v1_14_R1.DedicatedServer.init(DedicatedServer.java:258) [minecraft_server.jar:git-Spigot-c8d4cef-1fee35b] at net.minecraft.server.v1_14_R1.MinecraftServer.run(MinecraftServer.java:761) [minecraft_server.jar:git-Spigot-c8d4cef-1fee35b] at java.lang.Thread.run(Thread.java:748) [?:1.8.0_222]

please move this to https://github.com/mastercake10/CustomOreGen/issues/