Watch your children. Divorce rocks their world. They are the only innocents.
I am not a psychiatrist and psychologist so I am not qualified to tell you how to do anything actionable if you think there might be a problem. However, I can say that as a parent, watch your children. Communicate. Ask them how they feel. Be patient with them. They may act out. They may not talk much. Just watch them. Take them to a therapist, psychologist or psychiatrist. Don’t avoid the situation and don’t be afraid of what they might say.