Please note that Farmington is an online game that requires a stable internet connection at all times.
Try switching the network on your device (from wi-fi to mobile or vice versa).
Also make sure the game isn't blocked by a VPN app or antivirus.
For Android: If you saved your progress using Google Play or Facebook, try clearing the cache and app data, then re-enter the game.
For iOS: If you saved your progress using Game Center, Apple Id, or Facebook, try reinstalling the game.