App has had an error for a week "Whoops! We're having server trouble. Fatal ground prices server trouble.... we should have the issue resolved in no time." So, I am unable to reserve a rental car and the prices are steadily increasing. I searched for a way to receive assistance, but it is only provide if you have a reservation which the app will not let me make. Also, I uninstalled and reinstalled app to see if that would work but it didn't.