Hi, for two days in a row my battery has tripped the breaker between the AC3.0 inverter and the 5.2kW battery during the Octopus Go period. We have the car charging at the same time, but this has not caused an issue in the past. Any ideas what could be causing this? I applied the update a few weeks ago, but this issue has only just started occuring. 
I had a similar issue and it turned out to be the connection on the breaker required tightening.
https://community.givenergy.cloud/d/949-dcmcb-tripping/4
Hope this helps.
Other common cause is the installer accidentally catching part of the wire's covering in the connection, so not a clean connection. That's really not good!
Probably a good idea to get your installer back!
Hi, as other responders have said, this is likely to be a wiring problem not a software one. I had a similar issue that only occurred under specific load circumstances and was lucky that I was able to locate and fix the problem myself - only try if you know what you are doing (and have a trained electrician next door….)