Hi! Welcome! And thank you so much for giving this little girl a chance at having a good life.
My only thought is that perhaps she got scared by the bowl and now she's to warry of it to eat out of it. Try a different bowl, if the current on is glass, try a plastic one. Could it be light weight and tipped up and startled her? Even try a small plate or paper towel.
Long story short, my Sadie got startled once by her tags clinking against the edge of a glass bowl and from that day on would not eat or drink out of glass bowls, even if she wasn't wearing her tags.
Good luck and please keep us informed of her progress.