As the B1 Dashboard is currently in beta it will expire for B1UP 2016.x versions on the 1st of march 2017.
After the 1st of march 2017 you will no longer be able to start B1 Dashboard in B1UP 2016.x version.
Please upgrade to B1UP 2017.x once they become available to continue working with the B1 Dashboard.
NB: You will not loose your setup going from the beta to the final release