java.lang.NullPointerException: null
        at ru.Main.SaveConfigurations(Main.java:50) ~[?:?]
        at ru.Main.onDisable(Main.java:33) ~[?:?]
        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:266) ~[spigot-1.12.2.jar:git-Spigot-3d850ec-809c399]
        at org.bukkit.plugin.java.JavaPluginLoader.disablePlugin(JavaPluginLoader.java:361) [spigot-1.12.2.jar:git-Spigot-3d850ec-809c399]
        at org.bukkit.plugin.SimplePluginManager.disablePlugin(SimplePluginManager.java:422) [spigot-1.12.2.jar:git-Spigot-3d850ec-809c399]
        at org.bukkit.plugin.SimplePluginManager.disablePlugins(SimplePluginManager.java:415) [spigot-1.12.2.jar:git-Spigot-3d850ec-809c399]
        at org.bukkit.plugin.SimplePluginManager.clearPlugins(SimplePluginManager.java:456) [spigot-1.12.2.jar:git-Spigot-3d850ec-809c399]
        at org.bukkit.craftbukkit.v1_12_R1.CraftServer.reload(CraftServer.java:720) [spigot-1.12.2.jar:git-Spigot-3d850ec-809c399]
        at org.bukkit.Bukkit.reload(Bukkit.java:525) [spigot-1.12.2.jar:git-Spigot-3d850ec-809c399]
        at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:27) [spigot-1.12.2.jar:git-Spigot-3d850ec-809c399]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) [spigot-1.12.2.jar:git-Spigot-3d850ec-809c399]
        at org.bukkit.craftbukkit.v1_12_R1.CraftServer.dispatchCommand(CraftServer.java:649) [spigot-1.12.2.jar:git-Spigot-3d850ec-809c399]
        at net.minecraft.server.v1_12_R1.PlayerConnection.handleCommand(PlayerConnection.java:1397) [spigot-1.12.2.jar:git-Spigot-3d850ec-809c399]
        at net.minecraft.server.v1_12_R1.PlayerConnection.a(PlayerConnection.java:1232) [spigot-1.12.2.jar:git-Spigot-3d850ec-809c399]
        at net.minecraft.server.v1_12_R1.PacketPlayInChat.a(PacketPlayInChat.java:45) [spigot-1.12.2.jar:git-Spigot-3d850ec-809c399]
        at net.minecraft.server.v1_12_R1.PacketPlayInChat.a(PacketPlayInChat.java:1) [spigot-1.12.2.jar:git-Spigot-3d850ec-809c399]
        at net.minecraft.server.v1_12_R1.PlayerConnectionUtils$1.run(SourceFile:13) [spigot-1.12.2.jar:git-Spigot-3d850ec-809c399]
        at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_171]
        at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_171]
        at net.minecraft.server.v1_12_R1.SystemUtils.a(SourceFile:46) [spigot-1.12.2.jar:git-Spigot-3d850ec-809c399]
        at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:748) [spigot-1.12.2.jar:git-Spigot-3d850ec-809c399]
        at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:406) [spigot-1.12.2.jar:git-Spigot-3d850ec-809c399]
        at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:679) [spigot-1.12.2.jar:git-Spigot-3d850ec-809c399]
        at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:577) [spigot-1.12.2.jar:git-Spigot-3d850ec-809c399]