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Add more ventilation. It's not tough with a soldering iron.
Mold is overrated. And most "mold" that people talk about is a harmless slime mold. Almost always because of coco fiber.
Even if there is some, just pick it out with tweezers. Just don't let it turn into a carpet.
It's dying. Give it a water dish asap. They need to drink.
Doesn't look like you're doing it any favors anymore.
Give it a cage with deep moist sub and see what it does from there. It's likely a burrowed.