Stolen iPhone XR disappeared from iCloud once link in the found sms was cliked.

I cannot suddenly find my stolen iPhone XR in my iCloud account. My wife got a sms that it was found, forwarded it to me, I clicked the link in the SMS from my older iPhone 6, prompted me to sign in, I signed into my iCloud, and saw the iPhone XR in the map - somewhere in Italy. Then it's gone from my iCloud!!! I signed out and signed in several times, XR is not there anymore in my iCloud. I checked from my Macbook, no luck. How come?!?! Can anyone explain and show me a way? The phone was stolen on 8 February from Dhaka Airport Railway station, Bangladesh.

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