CDCD on WyzeBand, but will not boot up

My WyzeBand (only 4 mos old) shows a band icon, plus the letters CDCD below.

I have tried to reboot and PowerOff numerous times, but to no result, other than a return to the CDCD screen again.

Any suggestions as to what is wrong?

p.s. Earlier today, and for the first time, the band registered around 2 hrs, 18 minutes off the real time, first time it was not accurate.