Could you please share your mapping tab (the first one in the import screen) and the Line Item tab (the last one).
It would be also helpful to go into the detailed tab (in the screen attached) and scroll all the way to the right and get the information in the last column. This information clarifies the error a bit.
Einas "Give a Man a Fish, and You Feed Him for a Day. Teach a Man To Fish, and You Feed Him for a Lifetime"