[13:06:02] [Server thread/ERROR]: Error occurred while enabling skRayFall v1.9.2 (Is it up to date?)
java.lang.NoClassDefFoundError: net/minecraft/server/v1_9_R1/Packet
    at java.lang.Class.getDeclaredConstructors0(Native Method) ~[?:1.8.0_91]
    at java.lang.Class.privateGetDeclaredConstructors(Class.java:2671) ~[?:1.8.0_91]
    at java.lang.Class.getConstructor0(Class.java:3075) ~[?:1.8.0_91]
    at java.lang.Class.getConstructor(Class.java:1825) ~[?:1.8.0_91]
    at ch.njol.skript.lang.SyntaxElementInfo.<init>(SyntaxElementInfo.java:37) ~[?:?]
    at ch.njol.skript.Skript.registerEffect(Skript.java:912) ~[?:?]
    at net.rayfall.eyesniper2.skRayFall.skRayFall.onEnable(skRayFall.java:714) ~[?:?]
    at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:292) ~[patched_1.9.4.jar:git-Paper-730]
    at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:319) [patched_1.9.4.jar:git-Paper-730]
    at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:407) [patched_1.9.4.jar:git-Paper-730]
    at org.bukkit.craftbukkit.v1_9_R2.CraftServer.loadPlugin(CraftServer.java:357) [patched_1.9.4.jar:git-Paper-730]
    at org.bukkit.craftbukkit.v1_9_R2.CraftServer.enablePlugins(CraftServer.java:317) [patched_1.9.4.jar:git-Paper-730]
    at net.minecraft.server.v1_9_R2.MinecraftServer.t(MinecraftServer.java:419) [patched_1.9.4.jar:git-Paper-730]
    at net.minecraft.server.v1_9_R2.MinecraftServer.l(MinecraftServer.java:384) [patched_1.9.4.jar:git-Paper-730]
    at net.minecraft.server.v1_9_R2.MinecraftServer.a(MinecraftServer.java:338) [patched_1.9.4.jar:git-Paper-730]
    at net.minecraft.server.v1_9_R2.DedicatedServer.init(DedicatedServer.java:272) [patched_1.9.4.jar:git-Paper-730]
    at net.minecraft.server.v1_9_R2.MinecraftServer.run(MinecraftServer.java:578) [patched_1.9.4.jar:git-Paper-730]
    at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
Caused by: java.lang.ClassNotFoundException: net.minecraft.server.v1_9_R1.Packet
    at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:92) ~[patched_1.9.4.jar:git-Paper-730]
    at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:87) ~[patched_1.9.4.jar:git-Paper-730]
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_91]
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_91]
    ... 18 more
[13:06:02] [Server thread/INFO]: [skRayFall] Disabling skRayFall v1.9.2
[13:06:02] [Server thread/INFO]: [skRayFall] Bacon has been eaten. Make some more soon!
[13:06:02] [Server thread/ERROR]: Error occurred while disabling skRayFall v1.9.2 (Is it up to date?)
java.lang.NullPointerException
    at net.rayfall.eyesniper2.skRayFall.skRayFall.onDisable(skRayFall.java:755) ~[?:?]
    at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:294) ~[patched_1.9.4.jar:git-Paper-730]
    at org.bukkit.plugin.java.JavaPluginLoader.disablePlugin(JavaPluginLoader.java:347) [patched_1.9.4.jar:git-Paper-730]
    at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:323) [patched_1.9.4.jar:git-Paper-730]
    at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:407) [patched_1.9.4.jar:git-Paper-730]
    at org.bukkit.craftbukkit.v1_9_R2.CraftServer.loadPlugin(CraftServer.java:357) [patched_1.9.4.jar:git-Paper-730]
    at org.bukkit.craftbukkit.v1_9_R2.CraftServer.enablePlugins(CraftServer.java:317) [patched_1.9.4.jar:git-Paper-730]
    at net.minecraft.server.v1_9_R2.MinecraftServer.t(MinecraftServer.java:419) [patched_1.9.4.jar:git-Paper-730]
    at net.minecraft.server.v1_9_R2.MinecraftServer.l(MinecraftServer.java:384) [patched_1.9.4.jar:git-Paper-730]
    at net.minecraft.server.v1_9_R2.MinecraftServer.a(MinecraftServer.java:338) [patched_1.9.4.jar:git-Paper-730]
    at net.minecraft.server.v1_9_R2.DedicatedServer.init(DedicatedServer.java:272) [patched_1.9.4.jar:git-Paper-730]
    at net.minecraft.server.v1_9_R2.MinecraftServer.run(MinecraftServer.java:578) [patched_1.9.4.jar:git-Paper-730]
    at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]