Your marriage to your new spouse is probably voidable due to the setting aside of the divorce judgment. You should consult a lawyer about possible remedies, including asking the court to reconsider its opinion, asking the court to enter a divorce judgment "nunc pro tunc" back to the date of the original judgment and leaving any other issues for future hearings, or appealing the decision.
Without knowing what happened or why, I can't really say more than that.

