I think I have discovered the issue. It is the blur effect on the layer group “selo”.
It is (even without you being able to see it beucase of the transparency) spreading until more than it should be causing the image to (there must be a slight transparent layer caused by the blur) become bigger than it should be.
You have applied the blur effect on the group and to the rectangle inside.
Try to disabling these effects and try it again just to check if the extra space disappears.