[16:38:05 ERROR]: Exception stopping the server
org.bukkit.plugin.IllegalPluginAccessException: Plugin attempted to register task while disabled
    at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftScheduler.validate(CraftScheduler.java:400) ~[spigot-1.8.7.jar:git-Spigot-f928e7a-f27339c]
    at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftScheduler.runTaskTimer(CraftScheduler.java:123) ~[spigot-1.8.7.jar:git-Spigot-f928e7a-f27339c]
    at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftScheduler.runTaskLater(CraftScheduler.java:106) ~[spigot-1.8.7.jar:git-Spigot-f928e7a-f27339c]
    at com.projectkorra.ProjectKorra.Utilities.logging.LogFilter.isLoggable(LogFilter.java:64) ~[?:?]
    at java.util.logging.Handler.isLoggable(Handler.java:292) ~[?:1.7.0_21]
    at java.util.logging.StreamHandler.isLoggable(StreamHandler.java:233) ~[?:1.7.0_21]
    at java.util.logging.FileHandler.publish(FileHandler.java:572) ~[?:1.7.0_21]
    at com.projectkorra.ProjectKorra.Utilities.logging.PKLogHandler.publish(PKLogHandler.java:34) ~[?:?]
    at java.util.logging.Logger.log(Logger.java:565) ~[?:1.7.0_21]
    at java.util.logging.Logger.doLog(Logger.java:586) ~[?:1.7.0_21]
    at java.util.logging.Logger.log(Logger.java:675) ~[?:1.7.0_21]
    at org.bukkit.plugin.SimplePluginManager.disablePlugin(SimplePluginManager.java:426) ~[spigot-1.8.7.jar:git-Spigot-f928e7a-f27339c]
    at org.bukkit.plugin.SimplePluginManager.disablePlugins(SimplePluginManager.java:417) ~[spigot-1.8.7.jar:git-Spigot-f928e7a-f27339c]
    at org.bukkit.craftbukkit.v1_8_R3.CraftServer.disablePlugins(CraftServer.java:335) ~[spigot-1.8.7.jar:git-Spigot-f928e7a-f27339c]
    at net.minecraft.server.v1_8_R3.MinecraftServer.stop(MinecraftServer.java:464) ~[spigot-1.8.7.jar:git-Spigot-f928e7a-f27339c]
    at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:596) [spigot-1.8.7.jar:git-Spigot-f928e7a-f27339c]
    at java.lang.Thread.run(Thread.java:722) [?:1.7.0_21]