cnMaestro Alarm meaning

Can someone tell me what is the meaning of this alram on cnMaestro. I am getting this alarm for one of my Access Points. "Board SKU Is Not Supported For This Software"

This alarm is generated when an unsupported firmware image is applied to a device.  Was this generated when applying a firmware update via the device's web UI or when applying a software update via cnMaestro?

What type of device generated this alarm and what firmware version was applied?