Problems exposing temperature sensor in Alexa

Hello friends, I hope it’s okay to post this here. I’m not an expert and I’ve set up my Home Assistant by following tutorials. I’m having an issue where I’ve exposed my temperature sensors to Alexa. I have a Sonoff temperature sensor and an Aqara sensor, both connected through Zigbee2MQTT, and they’re working perfectly in Home Assistant. I can see them in the Alexa app, and I can even see the temperature readings there. However, when I ask Alexa about the temperature, she says it’s “not compatible with this.”

I’ve rebuilt my Home Assistant setup recently due to a mistake, and everything else seems to be working fine. Since the sensors are working correctly in Home Assistant, I think the problem might be with Alexa. Could someone please explain in simple terms what might be going wrong and how I can fix it? Any help would be greatly appreciated. Thank you!