Worried about tunnel collapse after moving tank

[lilcrabbieluvr]

So my hermit crab has been buried for a few weeks and I was redoing this room and I pushed the tank stand with the tank on it a few feet across the room. It's kind of heavy being 40 gallons so there was some vibration when moving it.

Afterwards I checked where I think my hermit crab is buried. It used to be more of a loose mound with a hole and now it's just a crater.

I'm worried I messed up his setup. If he's molting (I think he is, he's not eating his food and I never see or hear him lately) I read it's deadly if the tunnel collapses.

What should I do in this situation?

I feel so bad. After I moved the tank I was thinking it was probably a bad idea.

https://imgur.com/a/Owz9fMf Here's a picture. The plastic thing is just a shelf I have the water pools on.

[curlysister]

Crabs often move location after they are underground, so there is a very good chance he's not in that spot anyways.