How can I solve it if the disability has been solved, but "no data" occurs?

I am using Graphite to receive an alarm for the Response Code.
If data have a 4xx or 5xx error, it will be FIRING.

The problem is when this Response Code Error is solved.

When the error code is solved, the metric value does not exist.

Then, when the resolve notification comes from the slack, it shows NO DATA in the error code item.

Like below.

Errorcode: nodata labels = {} value = null

How can this problem solve?