Submit Button Alignment

My Submit button seems to float in the middle and is not aligned like the rest of the form. When I inspected the element in both Chrome and Firefox and deleted the space in the label tag <label>&nbsp;</label> it lined up correctly. I’m just trying to figure out if that data is coming from this plugin (and if so, where to remove it from) or elsewhere.

Thanks!

http://ww.wp.xz.cn/extend/plugins/wp-user-frontend/