Look, you move the rear sight in the direction you want the ball to go. In this case, you drift the rear sight to the RIGHT to move the shot right.
If you are going to move the Front sight, instead, then move the front site towards where the ball is now hitting to move it the other direction. So, in your case, you would move the front sight to the LEFT to make it shoot to the right! Even optic sights have adjustment to zero the sight to the gun.
I would check the sights, first, and then I would inspect the crown of the muzzle to see if it is square to the bore. Use a T-square to check the face of the muzzle to the bore, or better yet, a machinists guage for length, depth and square. That way you can run the vertical ruler down the barrel, and use the square of the crossbeam to check to see if the muzzle if square to the bore.
Lastly, I would return it to the factory to fix.
It really sounds like you are new to guns, or at least to open sights, and don't have any experience zeroing the sights. If you follow the instructions above, you should be able to adjust the sites to bring the point of impact back in line with your site picture.