voterouletteerror

[Server thread/ERROR]: Error occurred while enabling VoteRoulette v3.2 (Is it up to date?)
java.lang.NoClassDefFoundError: com/vexsoftware/votifier/Votifier
	at com.mythicacraft.voteroulette.VoteRoulette.setupVotifier(VoteRoulette.java:346) ~[?:?]
	at com.mythicacraft.voteroulette.VoteRoulette.onEnable(VoteRoulette.java:240) ~[?:?]
	at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:321) ~[paperspigot-1.8.8.jar:git-PaperSpigot-4a647dc-18fbb24]
	at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:340) [paperspigot-1.8.8.jar:git-PaperSpigot-4a647dc-18fbb24]
	at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:405) [paperspigot-1.8.8.jar:git-PaperSpigot-4a647dc-18fbb24]
	at com.rylinaux.plugman.util.PluginUtil.load(PluginUtil.java:285) [PlugMan.jar:?]
	at com.rylinaux.plugman.util.PluginUtil.load(PluginUtil.java:238) [PlugMan.jar:?]
	at com.rylinaux.plugman.util.PluginUtil.reload(PluginUtil.java:299) [PlugMan.jar:?]
	at com.rylinaux.plugman.command.ReloadCommand.execute(ReloadCommand.java:122) [PlugMan.jar:?]
	at com.rylinaux.plugman.PlugManCommandHandler.onCommand(PlugManCommandHandler.java:104) [PlugMan.jar:?]
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) [paperspigot-1.8.8.jar:git-PaperSpigot-4a647dc-18fbb24]
	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) [paperspigot-1.8.8.jar:git-PaperSpigot-4a647dc-18fbb24]
	at org.bukkit.craftbukkit.v1_8_R3.CraftServer.dispatchCommand(CraftServer.java:641) [paperspigot-1.8.8.jar:git-PaperSpigot-4a647dc-18fbb24]
	at org.bukkit.craftbukkit.v1_8_R3.CraftServer.dispatchServerCommand(CraftServer.java:627) [paperspigot-1.8.8.jar:git-PaperSpigot-4a647dc-18fbb24]
	at net.minecraft.server.v1_8_R3.DedicatedServer.aO(DedicatedServer.java:416) [paperspigot-1.8.8.jar:git-PaperSpigot-4a647dc-18fbb24]
	at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:379) [paperspigot-1.8.8.jar:git-PaperSpigot-4a647dc-18fbb24]
	at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:711) [paperspigot-1.8.8.jar:git-PaperSpigot-4a647dc-18fbb24]
	at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:614) [paperspigot-1.8.8.jar:git-PaperSpigot-4a647dc-18fbb24]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_31]
Caused by: java.lang.ClassNotFoundException: com.vexsoftware.votifier.Votifier
	at java.net.URLClassLoader$1.run(URLClassLoader.java:372) ~[?:1.8.0_31]
	at java.net.URLClassLoader$1.run(URLClassLoader.java:361) ~[?:1.8.0_31]
	at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_31]
	at java.net.URLClassLoader.findClass(URLClassLoader.java:360) ~[?:1.8.0_31]
	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:101) ~[paperspigot-1.8.8.jar:git-PaperSpigot-4a647dc-18fbb24]
	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:86) ~[paperspigot-1.8.8.jar:git-PaperSpigot-4a647dc-18fbb24]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_31]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_31]
	... 19 more