You guys want to run a business, well, start acting like businessmen. Your company will occasionally get subpoenaed or - heaven forbid! - be sued. You got a third-party subpoena for documents in a litigation. Guess what, this will happen from time to time. Your attorney should be negotiating with Meta to figure out what documents/testimony your company will provide.
Honestly, your behavior makes me question your maturity. Treat this as a learning experience about the reality of the American business/legal world. Get a lawyer to handle it and shut up about the case.