Samsung GS III JellyBean Cannot FIND PHONE

Hi, have a pc - have Samsung GS3 running JellyBean not rooted.
Tried the locate lost device feature from airdroid on the pc interface and it says cannot find my phone and shows some map in Iowa. I am in California. And yes, my phone is ON.

How do I fix this?

UPDATE: Now, I click on Find Phone, and it just continually says - Checking to see if find phone is activated - that window did not appear before.
How do I activate it?

thanks.