org.bukkit.command.CommandException: Unhandled exception executing command 'startlevel' in plugin TheBackrooms v1.0
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:47) ~[paper-api-1.20.4-R0.1-SNAPSHOT.jar:?]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:155) ~[paper-api-1.20.4-R0.1-SNAPSHOT.jar:?]
        at org.bukkit.craftbukkit.v1_20_R3.CraftServer.dispatchCommand(CraftServer.java:999) ~[paper-1.20.4.jar:git-Paper-499]
        at org.bukkit.craftbukkit.v1_20_R3.command.BukkitCommandWrapper.run(BukkitCommandWrapper.java:64) ~[paper-1.20.4.jar:git-Paper-499]
        at com.mojang.brigadier.context.ContextChain.runExecutable(ContextChain.java:73) ~[brigadier-1.2.9.jar:?]
        at net.minecraft.commands.execution.tasks.ExecuteCommand.a(ExecuteCommand.java:31) ~[paper-1.20.4.jar:git-Paper-499]
        at net.minecraft.commands.execution.tasks.ExecuteCommand.execute(ExecuteCommand.java:19) ~[paper-1.20.4.jar:git-Paper-499]
        at net.minecraft.commands.execution.UnboundEntryAction.a(UnboundEntryAction.java:8) ~[paper-1.20.4.jar:git-Paper-499]
        at net.minecraft.commands.execution.CommandQueueEntry.a(CommandQueueEntry.java:5) ~[paper-1.20.4.jar:git-Paper-499]
        at net.minecraft.commands.execution.ExecutionContext.a(ExecutionContext.java:103) ~[paper-1.20.4.jar:git-Paper-499]
        at net.minecraft.commands.CommandDispatcher.a(CommandDispatcher.java:434) ~[paper-1.20.4.jar:git-Paper-499]
        at net.minecraft.commands.CommandDispatcher.performCommand(CommandDispatcher.java:336) ~[paper-1.20.4.jar:git-Paper-499]
        at net.minecraft.commands.CommandDispatcher.a(CommandDispatcher.java:323) ~[paper-1.20.4.jar:git-Paper-499]
        at net.minecraft.server.network.PlayerConnection.a(PlayerConnection.java:2230) ~[paper-1.20.4.jar:git-Paper-499]
        at net.minecraft.server.network.PlayerConnection.lambda$handleChatCommand$14(PlayerConnection.java:2190) ~[paper-1.20.4.jar:git-Paper-499]
        at net.minecraft.util.thread.IAsyncTaskHandler.b(IAsyncTaskHandler.java:59) ~[paper-1.20.4.jar:git-Paper-499]
        at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?]
        at net.minecraft.server.TickTask.run(TickTask.java:18) ~[paper-1.20.4.jar:git-Paper-499]
        at net.minecraft.util.thread.IAsyncTaskHandler.d(IAsyncTaskHandler.java:149) ~[paper-1.20.4.jar:git-Paper-499]
        at net.minecraft.util.thread.IAsyncTaskHandlerReentrant.d(IAsyncTaskHandlerReentrant.java:24) ~[paper-1.20.4.jar:git-Paper-499]
        at net.minecraft.server.MinecraftServer.b(MinecraftServer.java:1465) ~[paper-1.20.4.jar:git-Paper-499]
        at net.minecraft.server.MinecraftServer.d(MinecraftServer.java:194) ~[paper-1.20.4.jar:git-Paper-499]
        at net.minecraft.util.thread.IAsyncTaskHandler.x(IAsyncTaskHandler.java:123) ~[paper-1.20.4.jar:git-Paper-499]
        at net.minecraft.server.MinecraftServer.bl(MinecraftServer.java:1442) ~[paper-1.20.4.jar:git-Paper-499]
        at net.minecraft.server.MinecraftServer.x(MinecraftServer.java:1365) ~[paper-1.20.4.jar:git-Paper-499]
        at net.minecraft.util.thread.IAsyncTaskHandler.c(IAsyncTaskHandler.java:133) ~[paper-1.20.4.jar:git-Paper-499]
        at net.minecraft.server.MinecraftServer.w_(MinecraftServer.java:1343) ~[paper-1.20.4.jar:git-Paper-499]
        at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:1232) ~[paper-1.20.4.jar:git-Paper-499]
        at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:319) ~[paper-1.20.4.jar:git-Paper-499]
        at java.lang.Thread.run(Thread.java:1583) ~[?:?]
Caused by: java.lang.NoSuchMethodError: 'void com.sk89q.worldedit.function.RegionMaskingFilter.<init>(com.sk89q.worldedit.function.mask.Mask, com.sk89q.worldedit.function.RegionFunction)'
        at collinvht.backrooms.module.main.module.levelsystem.object.levels.level37.Level37.loadExtra(Level37.java:89) ~[Backrooms-1.0.jar:?]

Region region = new CuboidRegion(Utils.getAdaptedWorld(world), BlockVector3.at(-37, -64, 128), BlockVector3.at(228, 319, -139));
                Region region2 = new CuboidRegion(Utils.getAdaptedWorld(world), BlockVector3.at(128, -64, 62), BlockVector3.at(169, 319, 39));
for (UUID uuid : session.getParty().getPartyList()) {
    Player player1 = Bukkit.getPlayer(uuid);
    if (player1 != null && player1.isOnline()) player = player1;
}
if (player == null) return;
EditSession editSession = Utils.getWorldEdit().createEditSession(player);

replace = new RegionMaskingFilter(mask, replace);