The installation of the video doorphone was unsuccessful, and you are blocked by the message: "Your phone is unable to communicate with your connected video doorphone".
Make sure that Bluetooth is enabled on your phone. If it is enabled, turn Bluetooth off and back on, then restart the installation process.
Make sure that your phone is within Bluetooth range of your monitor. To do this, perform the installation with both devices close to each other.
If the situation persists despite this change, contact Somfy customer service.