Yea, you want to change off that food.
There are a few different foods ppl use depending on there needs and means and there chinchillas needs and likes. Mazuri, oxbow, Manapros Select series Pro, Sho, or Gro, American Pet Diner.
Personaly;
I recently switched my boys to American Pet Diner Alffy Pellets because one of my boys was diagnosed with diabetes. Altho both boys seem to absolutely love this stuff.
My girls use Select Series Pro. (My boys did to until i switched to AMD.)
Note: The select series Pro is a rabbit food. A few are nutritional suited for chinchilla needs, but not all rabbit foods are. So select wisely.
You will have to research what is best for you, from nutrition to price to availability in your area.
If you are interested in this
product and cant get it locally. Usually bought from tractor supply, but many ppl don't find themselves near one.