16:20:54 [WARNING] Exception encountered when loading plugin: ComTabProx
java.lang.IllegalArgumentException: Plugin already initialized!
    at net.md_5.bungee.api.plugin.PluginClassloader.init(PluginClassloader.java:72)
    at net.md_5.bungee.api.plugin.Plugin.<init>(Plugin.java:36)
    at at.comprox.main.Main.<init>(Main.java:5)
    at at.comprox.main.OnTabTab.<init>(OnTabTab.java:11)
    at at.comprox.main.Main.onEnable(Main.java:9)
    at net.md_5.bungee.api.plugin.PluginManager.enablePlugins(PluginManager.java:250)
    at net.md_5.bungee.BungeeCord.start(BungeeCord.java:286)
    at net.md_5.bungee.BungeeCordLauncher.main(BungeeCordLauncher.java:62)
    at net.md_5.bungee.Bootstrap.main(Bootstrap.java:15)