Problem with fibaro motion sensor

Also funny u never added a Zwave device before. U have a Homey for like 5 years and just added a CoCo device? Or u just bought the Homey from Ebay? Is the time zone of ur Homey the same as u bought the Fibaro sensor for?
Like timezone Homey Europe and Fibaro sensor EU?
Just trying to help.
Ow, one more thing:
Did u try a new battery? The only way to know if the battery is ok is to measure it.