Hi usersuzanneflux This is an issue that a number of our customers are experiencing and our engineers are working towards resolving. I've created a case in relation to this contact and I've added it/your details to the investigation and if there are any updates or when the issue is resolved you'll be notified by email from that case. In the meantime you can select the blue circular icon in the top right of the home page of your QuickBooks account >  Manage your Intuit account > Products and billing > Select the account you'd like to access. If the above doesn't work you can log out of your account, log back in and select the relevant account you'd like to access.