Nabzo

I suspect I have a faulty inverter

Hi there hope you all well ? I'm new to this and I need some assistance . I have a 5kw inverter and a Huawei esm48100a1 48v 100ah battery 9solar 320w solar panels It's been installed for over a week I only run my lights and fridges and plugs. Yesterday I had about 20hrs on battery mode and then all of a sudden today the pv seem to not have kicked in the inverter went into by pass I switch the inverter of and back on still was in bypass. Then all of a sudden my light just kept on switching of and on then all of a sudden the pv kicked in supplying power to charge the battery and lights and then again later afternoon the inverter started to switch my light of and on for 5min it was doing that I had to move it back to Eskom at the mains. To prevent damage Can someone tell me what could be the issue attach is the images of my inverter and my setting Also if you could tell me what inverter do I have as I cant find what brand it is .