I can't tell you what you should do. You have to make the decisions. I "just answer" questions about the law.
If you have money in your account, then it's possible that the creditor can garnish that money. But, the creditor won't automatically know where that account is located, unless you have been ordered to disclose the account information.
The plaintiff's attorney wants to collect the money. He/she may want to try to settle, or to collect. You won't know unless you return the calls.
I'm not sure what you're worried about, if as you say, you're entirely insolvent, because the creditor won't spend money trying to squeeze blood from a stone. However, if you do have assets, then depending upon what those assets are and how they are held, the creditor may or may not be able to reach them.
But, I can't evaluate that, because I don't know what you have.