Worldguard not working?

[11:47:59 ERROR]: Error occurred while enabling WorldGuard v7.0.8+33cdb4a (Is it up to date?)
java.lang.NoSuchMethodError: org.yaml.snakeyaml.constructor.SafeConstructor: method 'void <init>()' not found
    at com.sk89q.worldguard.protection.managers.storage.file.YamlRegionFile.<clinit>(YamlRegionFile.java:92) ~[worldguard-bukkit-7.0.8-dist.jar:?]
    at com.sk89q.worldguard.protection.managers.storage.file.DirectoryYamlDriver.get(DirectoryYamlDriver.java:79) ~[worldguard-bukkit-7.0.8-dist.jar:?]
    at com.sk89q.worldguard.protection.managers.RegionContainerImpl.createAndLoad(RegionContainerImpl.java:136) ~[worldguard-bukkit-7.0.8-dist.jar:?]
    at com.sk89q.worldguard.protection.managers.RegionContainerImpl.load(RegionContainerImpl.java:115) ~[worldguard-bukkit-7.0.8-dist.jar:?]
    at com.sk89q.worldguard.bukkit.BukkitRegionContainer.load(BukkitRegionContainer.java:117) ~[worldguard-bukkit-7.0.8-dist.jar:?]
    at com.sk89q.worldguard.protection.regions.RegionContainer.loadWorlds(RegionContainer.java:175) ~[worldguard-bukkit-7.0.8-dist.jar:?]
    at com.sk89q.worldguard.protection.regions.RegionContainer.initialize(RegionContainer.java:64) ~[worldguard-bukkit-7.0.8-dist.jar:?]
    at com.sk89q.worldguard.bukkit.BukkitRegionContainer.initialize(BukkitRegionContainer.java:66) ~[worldguard-bukkit-7.0.8-dist.jar:?]
    at com.sk89q.worldguard.bukkit.BukkitWorldGuardPlatform.load(BukkitWorldGuardPlatform.java:143) ~[worldguard-bukkit-7.0.8-dist.jar:?]
    at com.sk89q.worldguard.WorldGuard.setup(WorldGuard.java:91) ~[worldguard-bukkit-7.0.8-dist.jar:?]
    at com.sk89q.worldguard.bukkit.WorldGuardPlugin.onEnable(WorldGuardPlugin.java:151) ~[worldguard-bukkit-7.0.8-dist.jar:?]
    at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:281) ~[paper-api-1.20.1-R0.1-SNAPSHOT.jar:?]
    at io.papermc.paper.plugin.manager.PaperPluginInstanceManager.enablePlugin(PaperPluginInstanceManager.java:189) ~[paper-1.20.1.jar:git-Paper-62]
    at io.papermc.paper.plugin.manager.PaperPluginManagerImpl.enablePlugin(PaperPluginManagerImpl.java:104) ~[paper-1.20.1.jar:git-Paper-62]
    at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:507) ~[paper-api-1.20.1-R0.1-SNAPSHOT.jar:?]
    at org.bukkit.craftbukkit.v1_20_R1.CraftServer.enablePlugin(CraftServer.java:636) ~[paper-1.20.1.jar:git-Paper-62]
    at org.bukkit.craftbukkit.v1_20_R1.CraftServer.enablePlugins(CraftServer.java:547) ~[paper-1.20.1.jar:git-Paper-62]
    at net.minecraft.server.MinecraftServer.loadWorld0(MinecraftServer.java:636) ~[paper-1.20.1.jar:git-Paper-62]
    at net.minecraft.server.MinecraftServer.loadLevel(MinecraftServer.java:435) ~[paper-1.20.1.jar:git-Paper-62]
    at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:308) ~[paper-1.20.1.jar:git-Paper-62]
    at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1101) ~[paper-1.20.1.jar:git-Paper-62]
    at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:318) ~[paper-1.20.1.jar:git-Paper-62]
    at java.lang.Thread.run(Thread.java:833) ~[?:?]
[11:47:59 INFO]: [WorldGuard] Disabling WorldGuard v7.0.8+33cdb4a
[11:47:59 INFO]: [WorldGuard] Shutting down executor and cancelling any pending tasks...