[20:32:00 ERROR]: Error occurred while enabling R3Serv v1.0 (Is it up to date?)
java.lang.NoClassDefFoundError: de/kumpelblase2/remoteentities/RemoteEntities
        at r3.electrohd.r3serv.Main.onEnable(Main.java:37) ~[?:?]
        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:250) ~[server.jar:git-Spigot-1463]
        at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:324) [server.jar:git-Spigot-1463]
        at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:405) [server.jar:git-Spigot-1463]
        at org.bukkit.craftbukkit.v1_7_R3.CraftServer.loadPlugin(CraftServer.java:467) [server.jar:git-Spigot-1463]
        at org.bukkit.craftbukkit.v1_7_R3.CraftServer.enablePlugins(CraftServer.java:385) [server.jar:git-Spigot-1463]
        at org.bukkit.craftbukkit.v1_7_R3.CraftServer.reload(CraftServer.java:826) [server.jar:git-Spigot-1463]
        at org.bukkit.Bukkit.reload(Bukkit.java:286) [server.jar:git-Spigot-1463]
        at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:24) [server.jar:git-Spigot-1463]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:180) [server.jar:git-Spigot-1463]
        at org.bukkit.craftbukkit.v1_7_R3.CraftServer.dispatchCommand(CraftServer.java:728) [server.jar:git-Spigot-1463]
        at org.bukkit.craftbukkit.v1_7_R3.CraftServer.dispatchServerCommand(CraftServer.java:715) [server.jar:git-Spigot-1463]
        at net.minecraft.server.v1_7_R3.DedicatedServer.aB(DedicatedServer.java:319) [server.jar:git-Spigot-1463]
        at net.minecraft.server.v1_7_R3.DedicatedServer.v(DedicatedServer.java:284) [server.jar:git-Spigot-1463]
        at net.minecraft.server.v1_7_R3.MinecraftServer.u(MinecraftServer.java:576) [server.jar:git-Spigot-1463]
        at net.minecraft.server.v1_7_R3.MinecraftServer.run(MinecraftServer.java:482) [server.jar:git-Spigot-1463]
        at net.minecraft.server.v1_7_R3.ThreadServerApplication.run(SourceFile:628) [server.jar:git-Spigot-1463]
Caused by: java.lang.ClassNotFoundException: de.kumpelblase2.remoteentities.RemoteEntities
        at java.net.URLClassLoader$1.run(URLClassLoader.java:366) ~[?:1.7.0_40]
        at java.net.URLClassLoader$1.run(URLClassLoader.java:355) ~[?:1.7.0_40]
        at java.security.AccessController.doPrivileged(Native Method) ~[?:1.7.0_40]
        at java.net.URLClassLoader.findClass(URLClassLoader.java:354) ~[?:1.7.0_40]
        at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:77) ~[server.jar:git-Spigot-1463]
        at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:62) ~[server.jar:git-Spigot-1463]
        at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.7.0_40]
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.7.0_40]
        ... 17 more