My scanned file has a thick black line at the center

This month is a critical month for me because we have a lot of papers to be passed during the third week and I need to scan some pictures to be included in paper. When I tried scanning the picture it did scanned but when I looked at the file on the computer there is this thick black line at the center.
I already checked my scanner and there is nothing in it, not even dust. So can anyone help me with this so that I can work on my paper and so that I won’t be having any trouble in the future?

