Problem/Bug WorldEdit issues, can't find a fix.

Hey, i've been trying to make a little server for my community and have ran into a issues with trying to make worldEdit work.

Here is the error

Code:

[17:58:58] [Server thread/INFO]: [WorldEdit] Loading WorldEdit v7.0.0-SNAPSHOT;4212-f7670f7
[17:58:59] [Server thread/INFO]: Got request to register class com.sk89q.worldedit.bukkit.BukkitServerInterface with WorldEdit [com.sk89q.worldedit.extension.platform.PlatformManager@32accae0]
[17:58:59] [Server thread/INFO]: Using com.sk89q.worldedit.bukkit.adapter.impl.Spigot_v1_14_R1 as the Bukkit adapter
[17:59:02] [Server thread/WARN]: Failed to load the built-in legacy id registry
java.lang.NoSuchMethodError: net.minecraft.server.v1_14_R1.IBlockState.d()Ljava/util/Collection;
at com.sk89q.worldedit.bukkit.adapter.impl.Spigot_v1_14_R1.getProperties(Spigot_v1_14_R1.java:367) ~[worldedit-bukkit-7.0.0-4212.jar:?]
at com.sk89q.worldedit.bukkit.BukkitBlockRegistry.getProperties(BukkitBlockRegistry.java:52) ~[worldedit-bukkit-7.0.0-4212.jar:?]
at com.sk89q.worldedit.world.block.BlockType.lambda$getPropertyMap$1(BlockType.java:119) ~[worldedit-bukkit-7.0.0-4212.jar:?]
at com.sk89q.worldedit.world.block.BlockType.updateField(BlockType.java:73) ~[worldedit-bukkit-7.0.0-4212.jar:?]
at com.sk89q.worldedit.world.block.BlockType.getPropertyMap(BlockType.java:118) ~[worldedit-bukkit-7.0.0-4212.jar:?]
at com.sk89q.worldedit.extension.factory.parser.DefaultBlockParser.parseProperties(DefaultBlockParser.java:166) ~[worldedit-bukkit-7.0.0-4212.jar:?]
at com.sk89q.worldedit.extension.factory.parser.DefaultBlockParser.parseLogic(DefaultBlockParser.java:282) ~[worldedit-bukkit-7.0.0-4212.jar:?]
at com.sk89q.worldedit.extension.factory.parser.DefaultBlockParser.parseFromInput(DefaultBlockParser.java:84) ~[worldedit-bukkit-7.0.0-4212.jar:?]
at com.sk89q.worldedit.extension.factory.parser.DefaultBlockParser.parseFromInput(DefaultBlockParser.java:57) ~[worldedit-bukkit-7.0.0-4212.jar:?]
at com.sk89q.worldedit.internal.registry.AbstractFactory.parseFromInput(AbstractFactory.java:69) ~[worldedit-bukkit-7.0.0-4212.jar:?]
at com.sk89q.worldedit.world.registry.LegacyMapper.loadFromResource(LegacyMapper.java:93) ~[worldedit-bukkit-7.0.0-4212.jar:?]
at com.sk89q.worldedit.world.registry.LegacyMapper.<init>(LegacyMapper.java:63) [worldedit-bukkit-7.0.0-4212.jar:?]
at com.sk89q.worldedit.world.registry.LegacyMapper.getInstance(LegacyMapper.java:156) [worldedit-bukkit-7.0.0-4212.jar:?]
at com.sk89q.worldedit.WorldEdit.loadMappings(WorldEdit.java:342) [worldedit-bukkit-7.0.0-4212.jar:?]
at com.sk89q.worldedit.bukkit.WorldEditPlugin.onLoad(WorldEditPlugin.java:103) [worldedit-bukkit-7.0.0-4212.jar:?]

Apparently this is a common error, and the worldEdit still is registered but when you try to use a command for example: Smooth you get a error like this.

Used images as my host is rather annoying with copying and pasting from console.