N.B.
It's the food. She's way to young to digest it and it's not working.
Baby food in ONLY flavored goo. It has NO NUTRITIONAL VALUE. None. That's from the company themselves. They say that jars of baby food are for teaching a baby to chew and swallow but that breast milk and/or formula should always be offered FIRST and they should be allowed to fill up on that then take a few bites of baby food. Not the reverse.
You do realize that breast milk and/or formula is her entire nutritional need at this age, right? She doesn't need food and shouldn't have it until she's at least 6 months old. Stop the food and I bet she goes back to normal poop.
Then she can start with easy to digest foods like rice cereal mixed with breast milk or formula in a runny consistency. SO she can digest it right.