@Antonia112, the page that requires a business email address is for guests to sign up for Business Travel. It has nothing to do with hosts. Hosts do not need a business email address for their listing to be Business Travel Ready.
For a listing to be Business Travel Ready:
The listing must also have the following Business Travel Ready amenities:
- Wireless Internet
- A laptop-friendly workspace
- Self check-in (this includes a key lockbox, doorman, keypad, or smartlock)
- A smoke detector
- A carbon monoxide detector
- Essentials (toilet paper, clean towels, and fresh linens)
- An iron
- Hangers
- A hair dryer
- Shampoo
Your listing indicates that it does NOT provide shampoo or a hair dryer.
Also, can a guest do Self Check In?
Finally, I noticed that your room specified as being a "Private Room in Guest Suite"
As the Business Travel Ready page says:
"Business Travel Ready listings must be an Entire Home/Apt and an eligible property type (house, apartment, bed & breakfast, bungalow, cabin, chalet, townhouse, villa, guesthouse, entire floor, hotel, loft, or condo)"
https://www.airbnb.com/help/article/1185/what-makes-a-listing-business-travel-ready
You can easily fix the Shampoo and Iron issue, and I imagine you have Self-Checkin.
The listing type is a harder thing to fix.