java.lang.ClassNotFoundException: net.minecraft.server.v1_8_R3.EnumClientCommand
       at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:91)
       at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:86)
       at java.lang.ClassLoader.loadClass(Unknown Source)
       at java.lang.ClassLoader.loadClass(Unknown Source)
       at java.lang.Class.forName0(Native Method)
       at java.lang.Class.forName(Unknown Source)
       at disable.me.versions.v1_7$1.run(v1_7.java:45)
       at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftTask.run(CraftTask.java:71)
       at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:350)
       at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:726)
       at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:367)
       at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:657)
       at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:560)
       at java.lang.Thread.run(Unknown Source)