[14:29:01 WARN]: [RegionName] Task #700 for RegionName v2.6 generated an exception java.lang.NoClassDefFoundError: com/sk89q/worldguard/WorldGuard at ru.ReDcTiOn.RegionName.Utils.getRegion(Utils.java:21) ~[?:?] at ru.ReDcTiOn.RegionName.Runnable.run(Runnable.java:16) ~[?:?] at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftTask.run(CraftTask.java:71) ~[minecraft_server.jar:git-Spigot-db6de12-18fbb24] at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:350) [minecraft_server.jar:git-Spigot-db6de12-18fbb24] at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:723) [minecraft_server.jar:git-Spigot-db6de12-18fbb24] at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [minecraft_server.jar:git-Spigot-db6de12-18fbb24] at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [minecraft_server.jar:git-Spigot-db6de12-18fbb24] at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [minecraft_server.jar:git-Spigot-db6de12-18fbb24] at java.lang.Thread.run(Thread.java:748) [?:1.8.0_222]
How can i fix this?