When Solar+Battery Installations Fail | YouSolar Is Asked to Help

An EverVolt solar-battery system that does not work.
Many companies offer solar storage solutions. Below is a photo of an installation of a Panasonic EverVolt system. This system has an estimated 45 kWh of energy storage and 15 kW of power.
This grid-tied battery backup system made it through one outage and then failed during the next one. It does not operate now. The installer is bankrupt.
The problem is not necessarily that Panasonic’s technology does not work but that it is too complicated to install.
Who even wants to look at this system below to figure out where the problem is?

The next-generation 25kW/70kWh PowerBloc will look like this current installation.