Carte d'OR Vanilla Icecream Taste Sour and Spoiled

The product was usually the one we always buy, the vanilla flavor. The top part looked normal, but as I was eating it, there was a strange taste that I couldn't quite grasp. Since it was my first time trying it, I couldn't immediately figure out what was wrong, I was like maybe the taste is like this...Later, as I reached the bottom, I came across some yellowish ice particles, and that made me uneasy. My child also had some, so I really hope we don't get poisoned.