Talk to your nearest immigration office and see what they can do for you...worst case you get a covid19 extension..you will have to show up on in person and no an agent canβt show up for you...
If she flies out right now she will not be able to return with a Tourist Visa...she should get the 30 day stamp and then get a letter and see if she can get another 30 day stamp...good luck
You will need a covid 19 test testing negative that is not over 72 Hours old, health insurance that covers $100,000 (ΰΈΏ3.2million) in coverage that explicitly states it covers covid19, and an airline that arrives....good luck