[08:13:42 ERROR]: Could not pass event PlayerMoveEvent to WorldGuard v6.0.0-SNAPSHOT.1464- with custom flags plugin.
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[spigotdev.jar:git-Spigot-1.7.9-R0.2-205-g48578ee]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigotdev.jar:git-Spigot-1.7.9-R0.2-205-g48578ee]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:509) [spigotdev.jar:git-Spigot-1.7.9-R0.2-205-g48578ee]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:494) [spigotdev.jar:git-Spigot-1.7.9-R0.2-205-g48578ee]
        at net.minecraft.server.v1_7_R4.PlayerConnection.a(PlayerConnection.java:249) [spigotdev.jar:git-Spigot-1.7.9-R0.2-205-g48578ee]
        at net.minecraft.server.v1_7_R4.PacketPlayInFlying.a(SourceFile:137) [spigotdev.jar:git-Spigot-1.7.9-R0.2-205-g48578ee]
        at net.minecraft.server.v1_7_R4.PacketPlayInPosition.handle(PacketPlayInPosition.java:35) [spigotdev.jar:git-Spigot-1.7.9-R0.2-205-g48578ee]
        at net.minecraft.server.v1_7_R4.NetworkManager.a(NetworkManager.java:186) [spigotdev.jar:git-Spigot-1.7.9-R0.2-205-g48578ee]
        at net.minecraft.server.v1_7_R4.ServerConnection.c(ServerConnection.java:81) [spigotdev.jar:git-Spigot-1.7.9-R0.2-205-g48578ee]
        at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:734) [spigotdev.jar:git-Spigot-1.7.9-R0.2-205-g48578ee]
        at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:289) [spigotdev.jar:git-Spigot-1.7.9-R0.2-205-g48578ee]
        at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:584) [spigotdev.jar:git-Spigot-1.7.9-R0.2-205-g48578ee]
        at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:490) [spigotdev.jar:git-Spigot-1.7.9-R0.2-205-g48578ee]
        at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628) [spigotdev.jar:git-Spigot-1.7.9-R0.2-205-g48578ee]
Caused by: java.lang.IncompatibleClassChangeError: Found interface com.sk89q.worldguard.protection.ApplicableRegionSet, but class was expected
        at com.mewin.WGRegionEvents.WGRegionEventsListener.updateRegions(WGRegionEventsListener.java:131) ~[?:?]
        at com.mewin.WGRegionEvents.WGRegionEventsListener.onPlayerMove(WGRegionEventsListener.java:85) ~[?:?]
        at sun.reflect.GeneratedMethodAccessor59.invoke(Unknown Source) ~[?:?]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.7.0_65]
        at java.lang.reflect.Method.invoke(Method.java:606) ~[?:1.7.0_65]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:298) ~[spigotdev.jar:git-Spigot-1.7.9-R0.2-205-g48578ee]
        ... 13 more