Has my starter gone bad?

Hi! My starter is a few weeks old and I feed it ever 2-3days. I scoop out a lot, especially top part and re-feed it with 1DL water and 1DL rye flour. Usually it has a dried up texture at the top while re-feeding. Today it looked like the pictures. I'm afraid I forgot it on the kitchen counter and it has had sun exposure for a few hours. The top part had a weird color, more dull than usually as well as the weird volcano in the center. It did not smell bad. I removed all but about a scoop of starter and re-fed it. Last picture is after removal and feeding Is it a goner?

Thanks!