Lifepo4 bms shutting down, is there a way to auto restart it?

[alexzan]

The battery will not charge below the protection temperature value but will continue to deliver power. Thus the battery will become depleted as its not being charged from solar, and low voltage protection either in the inverter or the BMS will occur.
200 watts load overnight, say 10 hours, is 2000 Wh, your battery holds 24 x 100, 2400 Wh.
I suggest you have a combination effect of Insufficient battery capacity with reduced charging due to temperature.
Note the recovery temperature will be higher than the cutoff value , perhaps 5C

that makes the most sense, thank you.

But now that I think of it, it does not explain the bms shutting off the power supply, which is what always happened.