Problem with the Dasher App, can't make a schedule

Hi,

I just signed up for door dash today and I have been having some trouble with the dasher app. I am using an iphone, and it wont let me schedule a time. When ever I go to schedule, and click the available tab it says Error loading content, try again. And I know its not a problem with my wifi as I can search the web just fine on my phone. I have tried turning off my phone, uninstalling and reinstalling the app, logging out and back in, but nothing seems to work! Did anyone else have this problem when they started. Am I doing something wrong. All help is appreciated.