ios simulator cuts off right half of the view controller screen

Im trying to build my first app ( just a label in centre of the view controller), yet the first error is that the ios simulator cut off the right side of what it suppose to show on view controller. i ve seen similar questions posted in Stack and tried all the suggested solutions, (auto layout, restart xcode or simulator, even tried a new project), this problem just not solved: the simulator is still only showed left half of the view controller. but when i tried another project ( a to-do-list ), the simulator worked perfectly fine. can any body help?

//sad.. i can not post images bc didnt have 10 reputation..// so in the view controller the label" login page" is at the centre of the screen, yet in the simulator, the label" login page" shown on the left side of the screen.