ABS VSC light, loud squealing, 2008 prius

I already had tbe red triangle come on twice with the code P0A93, inverter A cooling system performance. The red triangle immediately went off within a couple miles.
I'm a single mom with 2 kids, I door dash for a living. I also pay 207 a week just for childcare. So, I guess I'm more so rationalizing to myself why I kept driving...

The first red triangle was 3,000 miles ago. The second, was 200ish. We got a snow storm 2 days ago, and when the temp dropped to 20 my abs and vcs system lights came on and there was super loud high pitched squeeling. I went straight home. The next day, I turned it on and backed out of the spot, and it kept making the noise, the light was still on. I parked it.
Today, the lights are off. The noise is gone. I only drove one mile and parked it again.
Any ideas how safe my car is and how expensive this may run me? I'm guessing I can't drive it to make the funds to fix it??

 

Its super super low. Like I can see fluid, but its way down passed the low line and it looks clear.
What do I buy to put in it? I assume not water
And this is a pic of what I checked to make sure we are speaking of the same thing

 

WOW!!!! Your only 3ish hours away from me!!! I've actually been looking at moving to the Raleigh suburbs. Wayyy more affordable than Asheville. And I'm over snow.