Why does the training stop automatically after about 7 to 10 epochs?

[glorioustory]

Hi, thanks for the work!
I train the model use tensorflow2.2.0-gpu, datasets contain about 39000 images, input dataset with mask and output dataset without mask, After 7-10 normal epochs, the program exits directly without prompt, The final print is after the test.

33/33 [==============================] - 11s 321ms/step - loss: 0.0150 - acc: 0.1446 - recall: 0.9332 - precision: 1.0000
libpng warning: iCCP: known incorrect sRGB profile
libpng warning: iCCP: known incorrect sRGB profile

• TEST -> LOSS: 0.0150, ACC: 0.1446, RECALL: 0.9332, PRECISION: 1.0000

Other exits are also in this place. Why is this?