Hi Everybody! I'm a noob in the solar power/battery/inverter topic and I need your help. I own an inverter (MPPT Solar Inverter MAX 7200 - 7.2kw) and it was connected to just one Pylontech US2000 battery. Yesterday, I've purchased another one but since I couldn't find US2000 model, I've purchased US2000C. I've set the US2000C as master but unfortunately I keep getting the 61 error code on the inverter (BMS Communication Problem). I don't know how to fix it. Can you please help? I need to mention that when I had just one battery, I got various errors (due to the fact that I needed more batteries) but I didn't got the 61 error (BMS Communication) - so it worked with one battery, now, with the US2000C, it doesn't. Please help. Thank you!!!