Turn off Script_TerrainBuildRules in the add-ons menu.And how did you end up postnig this in suggestion instead of help?
you dont have to waste time turning it off, you can just delete/move it
^ Now this is a waste of time, would you rather go outside of blockland move/delete a ZIP file then upload blockland, or, go into blockland and click 'two' buttons?
I dont remember me donload TerrainBuildRules.