What is this bug guys?

I tried to contact the author but he is not replying in 3 days. So i POST here
My server is using 1.8.8, the plugin is Pro Bedwars latest version

Spoiler: The bug things

Error occurred while disabling ProBedwars v1.0 (Is it up to date?)
java.lang.NullPointerException
at io.gabbo200.github.Bedwars.Main.onDisable(Main.java:496) ~[?:?]
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:323) ~[spigot.jar:git-Spigot-d2856ae-8f0f4ed]
at org.bukkit.plugin.java.JavaPluginLoader.disablePlugin(JavaPluginLoader.java:364) [spigot.jar:git-Spigot-d2856ae-8f0f4ed]
at org.bukkit.plugin.SimplePluginManager.disablePlugin(SimplePluginManager.java:424) [spigot.jar:git-Spigot-d2856ae-8f0f4ed]
at io.gabbo200.github.Bedwars.Main.I(Main.java:1569) [ProBedWars.jar:?]
at io.gabbo200.github.Bedwars.Main.onEnable(Main.java:238) [ProBedWars.jar:?]
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:321) [spigot.jar:git-Spigot-d2856ae-8f0f4ed]
at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:340) [spigot.jar:git-Spigot-d2856ae-8f0f4ed]
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:405) [spigot.jar:git-Spigot-d2856ae-8f0f4ed]
at org.bukkit.craftbukkit.v1_8_R3.CraftServer.loadPlugin(CraftServer.java:356) [spigot.jar:git-Spigot-d2856ae-8f0f4ed]
at org.bukkit.craftbukkit.v1_8_R3.CraftServer.enablePlugins(CraftServer.java:316) [spigot.jar:git-Spigot-d2856ae-8f0f4ed]
at net.minecraft.server.v1_8_R3.MinecraftServer.s(MinecraftServer.java:418) [spigot.jar:git-Spigot-d2856ae-8f0f4ed]
at net.minecraft.server.v1_8_R3.MinecraftServer.k(MinecraftServer.java:382) [spigot.jar:git-Spigot-d2856ae-8f0f4ed]
at net.minecraft.server.v1_8_R3.MinecraftServer.a(MinecraftServer.java:337) [spigot.jar:git-Spigot-d2856ae-8f0f4ed]
at net.minecraft.server.v1_8_R3.DedicatedServer.init(DedicatedServer.java:256) [spigot.jar:git-Spigot-d2856ae-8f0f4ed]
at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:528) [spigot.jar:git-Spigot-d2856ae-8f0f4ed]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_131]
[10:23:00 ERROR]: Error occurred while enabling ProBedwars v1.0 (Is it up to date?)
org.bukkit.plugin.IllegalPluginAccessException: Plugin attempted to register [email protected] while not enabled
at org.bukkit.plugin.SimplePluginManager.registerEvents(SimplePluginManager.java:524) ~[spigot.jar:git-Spigot-d2856ae-8f0f4ed]
at io.gabbo200.github.Bedwars.g.b.<init>(DataManager.java:31) ~[?:?]
at io.gabbo200.github.Bedwars.Main.onEnable(Main.java:242) ~[?:?]
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:321) ~[spigot.jar:git-Spigot-d2856ae-8f0f4ed]
at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:340) [spigot.jar:git-Spigot-d2856ae-8f0f4ed]
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:405) [spigot.jar:git-Spigot-d2856ae-8f0f4ed]
at org.bukkit.craftbukkit.v1_8_R3.CraftServer.loadPlugin(CraftServer.java:356) [spigot.jar:git-Spigot-d2856ae-8f0f4ed]
at org.bukkit.craftbukkit.v1_8_R3.CraftServer.enablePlugins(CraftServer.java:316) [spigot.jar:git-Spigot-d2856ae-8f0f4ed]
at net.minecraft.server.v1_8_R3.MinecraftServer.s(MinecraftServer.java:418) [spigot.jar:git-Spigot-d2856ae-8f0f4ed]
at net.minecraft.server.v1_8_R3.MinecraftServer.k(MinecraftServer.java:382) [spigot.jar:git-Spigot-d2856ae-8f0f4ed]
at net.minecraft.server.v1_8_R3.MinecraftServer.a(MinecraftServer.java:337) [spigot.jar:git-Spigot-d2856ae-8f0f4ed]
at net.minecraft.server.v1_8_R3.DedicatedServer.init(DedicatedServer.java:256) [spigot.jar:git-Spigot-d2856ae-8f0f4ed]
at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:528) [spigot.jar:git-Spigot-d2856ae-8f0f4ed]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_131]

 

OH!??! It said the plugin support 1.8.8

 

It supports 1.8/1.9/1.10/1.11

 

I even use all version but it seems not working

 

Same thing happened. I download the jar files on REMOVED so should I use BuildTool instead of this?

 

Nah, the plugin still not working

 

Yes surely the same problem

 

Everyone has the same problem, I saw the review

 

I see. What the heck

 

I just want to get a refund because the author don't solve the problem and even not replying and questions and not online for 10 days

 

I just told to fix the error. It cost me not many