Hi @jemacu that is a strange error to be getting before even attempting to setup the sync module. The first screen you should see on a fresh app install will be prompting you to create an account. After which you can add sync modules and cameras.
Can you let us know what your phone operating system is? Did you download the latest version from the app/ play store? Have you attempted uninstalling / reinstalling the app yet ?
How about your network configuration, what brand router , your ISP, are you running any firewalls on your network ? Are you attempting to connect to Blink app over your WiFi or your cellular network ?