I have recently updated my server to 1.16, and with that came Nether gold and gilded blackstone. I normally would be fine with this but due to the server's main money unit being gold ingots, it would make the economy much too inflated because of the ease of mining Nether gold and would drive new players away. I have tried using WorldEdit to replace the Nether gold and gilded blackstone with their non-ore/non-golden counterparts, but it had completely lagged out the server and crashed. Is there any way I can go to the world folder and remove the blocks? I've heard talk of "deleting the block ids" but I have found no way to do this. Any help?