Q: When using Sku Fetch single fetch or batch fetch I am getting this error. How can it be fixed?

A: This error is caused by Manual Override option.
Please go to Sku Fetch to Price Settings.  See the screenshot: https://jmp.sh/a4vxhtr. You probably have Manual Override set to Yes. 
This means that you're instructing Sku Fetch to ignore the values you have in the formula wizard and to use whatever long written formula that you manually type in. 
If you got this error this means that the long written formula is blank and therefore equal to 0, so it's saying set my price to 0 for every item that is listed. eBay does not allow prices under $0.99 and therefore is resulting in the error. 

We recommend to set the option to No and use the formula wizard.