Помогите Не запускается плагин на 1.8.8

Вот ошибка, не знаю почему:

Код:

[09:26:09] [Server thread/ERROR]: Could not load 'plugins/BetaRank1.3.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: java.lang.IllegalArgumentException: Plugin already initialized!
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:135) ~[Spigot%201.5.2%20R1.1.jar:git-Spigot-d97e08b-880a532]
    at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:329) ~[Spigot%201.5.2%20R1.1.jar:git-Spigot-d97e08b-880a532]
    at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:251) [Spigot%201.5.2%20R1.1.jar:git-Spigot-d97e08b-880a532]
    at org.bukkit.craftbukkit.v1_8_R3.CraftServer.loadPlugins(CraftServer.java:292) [Spigot%201.5.2%20R1.1.jar:git-Spigot-d97e08b-880a532]
    at net.minecraft.server.v1_8_R3.DedicatedServer.init(DedicatedServer.java:198) [Spigot%201.5.2%20R1.1.jar:git-Spigot-d97e08b-880a532]
    at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:524) [Spigot%201.5.2%20R1.1.jar:git-Spigot-d97e08b-880a532]
    at java.lang.Thread.run(Unknown Source) [?:1.7.0_45]
Caused by: java.lang.IllegalArgumentException: Plugin already initialized!
    at org.bukkit.plugin.java.PluginClassLoader.initialize(PluginClassLoader.java:122) ~[Spigot%201.5.2%20R1.1.jar:git-Spigot-d97e08b-880a532]
    at org.bukkit.plugin.java.JavaPlugin.<init>(JavaPlugin.java:66) ~[Spigot%201.5.2%20R1.1.jar:git-Spigot-d97e08b-880a532]
    at ds.over.rank.Main.<init>(Main.java:21) ~[?:?]
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.7.0_45]
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) ~[?:1.7.0_45]
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) ~[?:1.7.0_45]
    at java.lang.reflect.Constructor.newInstance(Unknown Source) ~[?:1.7.0_45]
    at java.lang.Class.newInstance(Unknown Source) ~[?:1.7.0_45]
    at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:76) ~[Spigot%201.5.2%20R1.1.jar:git-Spigot-d97e08b-880a532]
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:131) ~[Spigot%201.5.2%20R1.1.jar:git-Spigot-d97e08b-880a532]
    ... 6 more
Caused by: java.lang.IllegalStateException: Initial initialization
    at org.bukkit.plugin.java.PluginClassLoader.initialize(PluginClassLoader.java:125) ~[Spigot%201.5.2%20R1.1.jar:git-Spigot-d97e08b-880a532]
    at org.bukkit.plugin.java.JavaPlugin.<init>(JavaPlugin.java:66) ~[Spigot%201.5.2%20R1.1.jar:git-Spigot-d97e08b-880a532]
    at ds.over.rank.Main.<init>(Main.java:21) ~[?:?]
    at ds.over.rank.Main.<clinit>(Main.java:29) ~[?:?]
    at java.lang.Class.forName0(Native Method) ~[?:1.7.0_45]
    at java.lang.Class.forName(Unknown Source) ~[?:1.7.0_45]
    at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:64) ~[Spigot%201.5.2%20R1.1.jar:git-Spigot-d97e08b-880a532]
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:131) ~[Spigot%201.5.2%20R1.1.jar:git-Spigot-d97e08b-880a532]
    ... 6 more

 

Код главного класса в студию.

 

Вы где-то создаете второй раз объект наследуемый от JavaPlugin.

 

понял, спасибо.