[10:43:13 ERROR]: [PrisonRankup] Unable to register managers, disabling plugin...
java.lang.StringIndexOutOfBoundsException: String index out of range: 1
        at java.lang.String.charAt(Unknown Source) ~[?:1.7.0_55]
        at java.util.regex.Matcher.appendReplacement(Unknown Source) ~[?:1.7.0_55]
        at java.util.regex.Matcher.replaceAll(Unknown Source) ~[?:1.7.0_55]
        at java.lang.String.replaceAll(Unknown Source) ~[?:1.7.0_55]
        at io.mazenmc.prisonrankup.utils.ClassFinder.find(ClassFinder.java:36) ~[PrisonRankup-3.0.ja
r:?]
        at io.mazenmc.prisonrankup.utils.ClassFinder.find(ClassFinder.java:57) ~[PrisonRankup-3.0.ja
r:?]
        at io.mazenmc.prisonrankup.PrisonRankupPlugin.onEnable(PrisonRankupPlugin.java:52) [PrisonRa
nkup-3.0.jar:?]
        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:316) [craftbukkit.jar:git-Bu
kkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
        at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:324) [craftbuk
kit.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
        at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:404) [craftbu
kkit.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
        at org.bukkit.craftbukkit.v1_7_R4.CraftServer.loadPlugin(CraftServer.java:455) [craftbukkit.
jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
        at org.bukkit.craftbukkit.v1_7_R4.CraftServer.enablePlugins(CraftServer.java:389) [craftbukk
it.jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
        at net.minecraft.server.v1_7_R4.MinecraftServer.n(MinecraftServer.java:352) [craftbukkit.jar
:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
        at net.minecraft.server.v1_7_R4.MinecraftServer.g(MinecraftServer.java:326) [craftbukkit.jar
:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
        at net.minecraft.server.v1_7_R4.MinecraftServer.a(MinecraftServer.java:282) [craftbukkit.jar
:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
        at net.minecraft.server.v1_7_R4.DedicatedServer.init(DedicatedServer.java:189) [craftbukkit.
jar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
        at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:436) [craftbukkit.j
ar:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
        at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628) [craftbukkit.jar
:git-Bukkit-1.7.9-R0.2-24-g07d4558-b3116jnks]
[10:43:13 INFO]: [PrisonRankup] Disabling PrisonRankup v3.0
[10:43:13 ERROR]: Error occurred while disabling PrisonRankup v3.0 (Is it up to date?)