"Automated Delivery Restriction"

Any idea what this error means?

"Automated Delivery Restriction Omnipod 5 app has switched to Automated Mode: Limited Insulin delivery has been either: - Paused for too, long - At maximum delivery for too long You may need a new Sensor."

The last time my loved one had this error message, later that night she had an episode of DKA, and apparently it had stopped giving her insulin even though she kept correcting. She thought maybe the candula had come loose, but there was no sign of leakage or wetness around the pod.

She got it again earlier today, again no idea what caused it. Her numbers are going high again, even though she's continuing to correct. Again, no sign of leakage.

She never paused it, and she wasn't giving herself more than she usually does. If she ate, she bolused, as usual. It just isn't working.

What does this error mean, is it stopping insulin from being delivered, and how does she prevent this from happening?

Thank you!