Image_segmentation_Unet_v2-training error

hello
part 4 - Train the Model
i’m trying to train the model but the kernel interrupt by itself and getting restarted and the kernel dies.Waht’s the problem?

Try using an anonymous browser session.

I tested this but it doesn’t worked

The “dead kernel” issue is known, and Coursera is said to be working on a fix.
No other news is available on that.

You can try submitting your work for grading, the same kernel isn’t used by the grader.