AI16Z cannot be swapped back in solana

There is a problem that who swapped solana in ai16z cannot swap them back. It turns out that users can't do anything with the funds — neither withdraw them from the Solana wallet (because there's no such function), nor swap them (because an error occurs during the swap — see the screenshot below).

My Towns solana wallet - AUKcs1pKUAp6njwBe2VJc8pqoxqt29rHE9MZfjZx9PsH