Connect the LMHT-1ZBS sensor to a Xbee S2C

I’m working on a project for school and I’m very new to to how Zigbees and how the XCTU software works. I am able to have the Xbee connect with the sensor (lmht-1zbs), and show on the map, but when i go to configure. I get the error “device is not initialized. this may occur if the device is sleeping while it was discovered.” The data sheet for the sensor can be found here https://fccid.io/GX9LMHTZB/User-Manual/Users-Manual-3222167. We need help initializing the sensor.

Thank you for your time.