Service App shutdown

There's just been a system update on the GivEnergy battery/inverter (not sure which) and my BB service provider has just changed. Everything (and that's a lot) is working normally with little effort required BUT the Givenergy App refuses to work. Any help available?

You probably need to update the IP address setting in the app to match the new IP assigned to the inverter by presumably a new router. You should be able to see the address in the router status settings. Best to fix it there as well.