@Tapiwa0
I think you would need to contact airbnb with the second issue on the cancellation of the guests arriving tomorrow. I would believe airbnb would treat the cancellation issue and the resolution issue as two different cases.
The only thing you can do now is to notify your guests, have airbnb cancel their reservation on extenuating circumstances ground so that they are fully refunded, then perhaps try and assist your guests in finding something else and provide proof for their travel insurance if they need. Airbnb might be of assistance with the rehousing too, but it should be easy enough to do a search for what is free in the preferred areas.