Help!

Contracted a company in SoCal they installed 46 Panels (Q7 Enphase) and an Enphase battery pack.

For a year now the system has not worked reliably, they had issues getting the battery to work, then the system would stop working, now everything is error and won’t work.

The system hasn’t produced anything, and i am still paying to the bank. No one wants to touch the system or even try to troubleshoot.

I guess my bad on not doing enough research on this shady company, but anyway someone here would know what are my options to get my installed system to work? (I am in the process of hiring a lawyer to sue the company)

​

Just need some help/advice on who can help me troubleshoot and repair my system once and for all?