I assume that was the same image? can you strip a full strip of negatives?
And that is a weird place for the bar.
Try the following without film
open the back, set the shutter in B, position yourself in fornt of the camera point the lens to a white sheet of paper and click (better if you have a shutter release cable that will keep the shutter opened)
Now check if there is anything obstructing your view to the paper (you should see a magnified view of the paper)
If you see something physical obstructing the view try to locate it and remove it