It’s not meant to be BUILT or PLACED in the game. It would seem you’ve found a bug that can’t be undone because of the nature of the item. It’s exclusive to the leyshrines and ONLY the leyshrines. The fact that you’ve placed one makes it go against its intended purpose. If you can’t remove it, even in admin mode, you’re pretty much screwed. You either have to leave it there or wipe your game and start fresh.

If you don’t know enough about the game and what you can and can’t build or place, i strongly recommend you try playing on a server and getting a feel for the game’s intended mechanics… or avoid using the admin panel as much as possible. It can be an addicting mode and can become abused in the long run. I only use single player admin for planning my builds for online official. When i do that, it’s fine because i know what i can build and what i can’t. I won’t use items I can’t use.