15:18:40 [INFO] [BattleArena] Disabling BattleArena v3.9.9.5
15:18:40 [SEVERE] Error occurred while disabling BattleArena v3.9.9.5 (Is it up to date?)
15:18:40 java.lang.NullPointerException
15:18:40 	at mc.alk.arena.BattleArena.onDisable(BattleArena.java:280) ~[?:?]
15:18:40 	at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:318) ~[custom_server.jar:git-Spigot-1627]
15:18:41 	at org.bukkit.plugin.java.JavaPluginLoader.disablePlugin(JavaPluginLoader.java:356) [custom_server.jar:git-Spigot-1627]
15:18:41 	at org.bukkit.plugin.SimplePluginManager.disablePlugin(SimplePluginManager.java:424) [custom_server.jar:git-Spigot-1627]
15:18:41 	at org.bukkit.plugin.SimplePluginManager.disablePlugins(SimplePluginManager.java:417) [custom_server.jar:git-Spigot-1627]
15:18:41 	at org.bukkit.craftbukkit.v1_7_R4.CraftServer.disablePlugins(CraftServer.java:412) [custom_server.jar:git-Spigot-1627]
15:18:41 	at net.minecraft.server.v1_7_R4.MinecraftServer.stop(MinecraftServer.java:393) [custom_server.jar:git-Spigot-1627]
15:18:41 	at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:525) [custom_server.jar:git-Spigot-1627]
15:18:41 	at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628) [custom_server.jar:git-Spigot-1627]