So, if I am not mistaken, you try to load a version of Minecraft 1.16.2 with WorldEdit – version “worldedit-forge-mc1.16.1-7.2.0-beta-02.jar”. This Version will only work for Minecraft 1.16.1, due to the new changes Forge itself has made. (A License in the mods.toml-file itself must now be set). This is nothing you can really change if you aren’t the developer of the mod.
I’m sad to say, you’ll have to wait until a new WorldEdit version is released, which includes the new changes to the license.