They are closed right now. You appear to be using Live Self-Employed. That Live feature is available
during business hours. Support is open 5AM-9PM Pacific (8AM-12
Midnight Eastern) 7 days.
Don't try to schedule your appointment until they open for the day, or it might give you a distant appointment. You'll get a better time if you wait until they open.
FAQ: What is TurboTax Live?
https://ttlc.intuit.com/questions/3859448-what-is-turbotax-live
FAQ: How do I connect with a tax expert in TurboTax Live?
https://ttlc.intuit.com/questions/4124827-how-do-i-connect-with-a-tax-expert-in-turbotax-live
