[21:02:08] [Server thread/ERROR]: Could not pass event ProjectileLaunchEvent to rFixes v1.2
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[tcpr.ca.jar:git-PaperSpigot-1f7d532]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[tcpr.ca.jar:git-PaperSpigot-1f7d532]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:509) [tcpr.ca.jar:git-PaperSpigot-1f7d532]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:494) [tcpr.ca.jar:git-PaperSpigot-1f7d532]
	at org.bukkit.craftbukkit.v1_7_R4.event.CraftEventFactory.callProjectileLaunchEvent(CraftEventFactory.java:750) [tcpr.ca.jar:git-PaperSpigot-1f7d532]
	at net.minecraft.server.v1_7_R4.World.addEntity(World.java:1119) [tcpr.ca.jar:git-PaperSpigot-1f7d532]
	at net.minecraft.server.v1_7_R4.World.addEntity(World.java:1085) [tcpr.ca.jar:git-PaperSpigot-1f7d532]
	at net.minecraft.server.v1_7_R4.ItemPotion.a(SourceFile:112) [tcpr.ca.jar:git-PaperSpigot-1f7d532]
	at net.minecraft.server.v1_7_R4.ItemStack.a(ItemStack.java:186) [tcpr.ca.jar:git-PaperSpigot-1f7d532]
	at net.minecraft.server.v1_7_R4.PlayerInteractManager.useItem(PlayerInteractManager.java:329) [tcpr.ca.jar:git-PaperSpigot-1f7d532]
	at net.minecraft.server.v1_7_R4.PlayerConnection.a(PlayerConnection.java:642) [tcpr.ca.jar:git-PaperSpigot-1f7d532]
	at net.minecraft.server.v1_7_R4.PacketPlayInBlockPlace.a(PacketPlayInBlockPlace.java:50) [tcpr.ca.jar:git-PaperSpigot-1f7d532]
	at net.minecraft.server.v1_7_R4.PacketPlayInBlockPlace.handle(PacketPlayInBlockPlace.java:86) [tcpr.ca.jar:git-PaperSpigot-1f7d532]
	at net.minecraft.server.v1_7_R4.NetworkManager.a(NetworkManager.java:189) [tcpr.ca.jar:git-PaperSpigot-1f7d532]
	at net.minecraft.server.v1_7_R4.ServerConnection.c(ServerConnection.java:81) [tcpr.ca.jar:git-PaperSpigot-1f7d532]
	at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:551) [tcpr.ca.jar:git-PaperSpigot-1f7d532]
	at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628) [tcpr.ca.jar:git-PaperSpigot-1f7d532]
Caused by: java.lang.IllegalArgumentException: Plugin cannot be null
	at org.apache.commons.lang.Validate.notNull(Validate.java:192) ~[tcpr.ca.jar:git-PaperSpigot-1f7d532]
	at org.bukkit.craftbukkit.v1_7_R4.scheduler.CraftScheduler.validate(CraftScheduler.java:397) ~[tcpr.ca.jar:git-PaperSpigot-1f7d532]
	at org.bukkit.craftbukkit.v1_7_R4.scheduler.CraftScheduler.runTaskTimer(CraftScheduler.java:123) ~[tcpr.ca.jar:git-PaperSpigot-1f7d532]
	at org.bukkit.craftbukkit.v1_7_R4.scheduler.CraftScheduler.runTaskLater(CraftScheduler.java:106) ~[tcpr.ca.jar:git-PaperSpigot-1f7d532]
	at org.bukkit.scheduler.BukkitRunnable.runTaskLater(BukkitRunnable.java:64) ~[tcpr.ca.jar:git-PaperSpigot-1f7d532]
	at us.darkstone.rFixes.listeners.Combat.PotionListener.ProjectileLaunch(PotionListener.java:28) ~[?:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_111]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_111]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_111]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_111]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:298) ~[tcpr.ca.jar:git-PaperSpigot-1f7d532]
	... 16 more