It occurs to me that she is thirsty ! Only dry food, served in a puzzle ball, is hardly an acceptable feeding regime to have started her on. Get a can of decent quality dog food, mix that with a little kibble and moisten it with water to make a gravy.
And make sure she always has a bowl of clean fresh water to drink from.
My Hoover gets half a can of Pedigree Chum (yes, I know some of you sneer at it, but I've fed it to up to eight Basenjis at a time for 40 years now and they've all done well on it) - split between two identical meals each day. The can gets a plastic lid on and goes into the refrigerator so lasts two days. This is mixed with a grain-free kibble and water.
Soon a can will only last a day - cos we will have our new PUPPY ! which will grow up and need a similar diet over time.
As for human food - I always cook more vegetables than we need cos Basenjis love cabbage, beans, Brussels Sprouts, carrots, squash of all kinds. But this is an additive when they deserve it, not a substitute for acceptable dog food.