[16:15:29 ERROR]: Error occurred while enabling Classes v0.7 (Is it up to date?)
java.lang.NullPointerException
        at me.frostedtimmy.classes.util.Classes.<init>(Classes.java:19) ~[?:?]
        at me.frostedtimmy.classes.commands.ClassCommand.<init>(ClassCommand.java:16) ~[?:?]
        at me.frostedtimmy.classes.TimmyClasses.onEnable(TimmyClasses.java:28) ~[?:?]
        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:292) ~[spigot.jar:git-Spigot-c6871e2-0cd0397]
        at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:340) [spigot.jar:git-Spigot-c6871e2-0cd0397]
        at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:405) [spigot.jar:git-Spigot-c6871e2-0cd0397]
        at org.bukkit.craftbukkit.v1_9_R2.CraftServer.loadPlugin(CraftServer.java:362) [spigot.jar:git-Spigot-c6871e2-0cd0397]
        at org.bukkit.craftbukkit.v1_9_R2.CraftServer.enablePlugins(CraftServer.java:322) [spigot.jar:git-Spigot-c6871e2-0cd0397]
        at org.bukkit.craftbukkit.v1_9_R2.CraftServer.reload(CraftServer.java:746) [spigot.jar:git-Spigot-c6871e2-0cd0397]
        at org.bukkit.Bukkit.reload(Bukkit.java:539) [spigot.jar:git-Spigot-c6871e2-0cd0397]
        at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:25) [spigot.jar:git-Spigot-c6871e2-0cd0397]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) [spigot.jar:git-Spigot-c6871e2-0cd0397]
        at org.bukkit.craftbukkit.v1_9_R2.CraftServer.dispatchCommand(CraftServer.java:646) [spigot.jar:git-Spigot-c6871e2-0cd0397]
        at org.bukkit.craftbukkit.v1_9_R2.CraftServer.dispatchServerCommand(CraftServer.java:632) [spigot.jar:git-Spigot-c6871e2-0cd0397]
        at net.minecraft.server.v1_9_R2.DedicatedServer.aL(DedicatedServer.java:437) [spigot.jar:git-Spigot-c6871e2-0cd0397]
        at net.minecraft.server.v1_9_R2.DedicatedServer.D(DedicatedServer.java:400) [spigot.jar:git-Spigot-c6871e2-0cd0397]
        at net.minecraft.server.v1_9_R2.MinecraftServer.C(MinecraftServer.java:665) [spigot.jar:git-Spigot-c6871e2-0cd0397]
        at net.minecraft.server.v1_9_R2.MinecraftServer.run(MinecraftServer.java:564) [spigot.jar:git-Spigot-c6871e2-0cd0397]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_211]