I own a GE side-by-side model # GSS25LGMF CC; my

ive seen this before on this model, what is happening is the water line in the door is freezing and clogging up
the best thing you can doo here is disconnect that tube and try to get it defrosted
i usually suggest to turn the unit off
and open the freezer door let the inside come up to room temp
and drain from the coupler