Alert on screen

Today I have had a message come up on the screen saying to that there are no available chargers within the area (or something to that effect)

Each time, it has to be dismissed off the screen.

I drove the car to and from work (64 miles) and this message came up for both journeys despite the battery level being over 50%

Any ideas what's going on?

(Nov 2020 reg i GT Line R135 Z.E. 50 Rapid Charge)

Thanks