Resolve autolayout issues

I've a project crashing when the users of iOS 7.1 start typing few characters on a e-mail text field. It happens on two views and it has to be fixed ASAP. This is a part of the error messages: Probably at least one of the constraints in the following list is one you don't want. Try this: (1) look at each constraint and try to figure out which you don't expect; (2) find the code that added the unwanted constraint or constraints and fix it. (Note: If you're seeing NSAutoresizingMaskLayoutConstraints that you don't understand, refer to the documentation for the UIView property translatesAutoresizingMaskIntoConstraints) ( "<NSLayoutConstraint:0x16646630 H:[RegisterButton:0x16647320(278)]>", Thank you in advantage.