OK..? Are you still wearing the sensor?
I've had the "try again in ten minute" notification.. & the odd unable to read. But successive tries to date the sensors has lasted the 14 day period..
What device are you using..?
Do you have NFC payment set up on your phne? Can you turn this off? (Not the actual NFC.)
Bluetooth, can this be switched off along with wifi?
I'm thinking some sort of interference or app conflict affecting the sensor..
It certainly worthwhile phoning the Abbott helpline..