iPad App keeps giving an error - "Couldn't contact Swift servers"

How do I fix this 

Sorry Zwift isn’t connecting for you! We’re able to connect on our side, have you tried our troubleshooting tips? It seems like you may have recently updated your Zwift app as well. If the troubleshooting steps did not work, can you try reinstalling Zwift? If you still need assistance try sending us a support ticket! We’ll do our best to get to the bottom of the issue. :slight_smile: