iMessages activation error
After updating my daughter's iPod, I can no longer sign into iMessages or FaceTime. The message I receive is "An error occurred during activation. Try again." I have tried checking my wifi, turning airplane mode on and off, I have even completely wiped the iPod and started over from "new". I am also unable to sign into iMessages on my Mac with her information. I have waited several days (it says to try waiting 24 hours), and still the same error message. Any help would be appreciated.
iPod touch, iOS 11.2.6