You not using that output is why you have been able to drain your batteries so low, your CC has the ability to fix this but it's ut to you to use the functionality.
Actually I just looked up your manual (I'm assuming it's a Tracer4215BN or very similar) and it appears that unlike the other Tracers, your model actually provides power from the load port, not a dry contact as all the older epevers (and most everyone else does).
For this reason I'd ament the drawing to be this:
View attachment 124948
Note that this still doesn't solve the root of your issues, it's just a nice way to wire it up so that you get some levels of protection against driving the inverter right down to where the battery BMS cuts out...
From what I presume to be your manual:
"Battery Over discharge [protection]: When battery voltage reach to the voltage set point of Low Voltage Disconnect Voltage, the controller will stop discharging the battery to protect the battery over discharged to break down. "