That says V_A+. E+/E- should be outputs from the HX711 providing the "Excitation voltage" to the bridge, and A+/A- are inputs back into the amplifier in the HX711.
E+ to E- should be 5V,on the HX711, whether it's attached to the bridge or not. Measuring across A+ to A- with nothing attached would tell you more about your meter than it would tell you about the HX711.
If E+/E- is significantly less than 5V, then something's wrong with the HX711