This is a UI bug in our current release (caused by an update to fontawesome..). You can fix it by doing this:
Open the browser console (firefox, chrome, safari) in the settings page.
Run this command
angular.element(document.getElementsByClassName('content')).scope().cloudronNameChange.show()
This will open a dialog that will let you set the name.
Some other elements are missing as well in the profile page. For that, run this:
angular.element(document.getElementsByClassName('content')).scope().displayNameChange.show()
angular.element(document.getElementsByClassName('content')).scope().emailchange.show()
angular.element(document.getElementsByClassName('content')).scope().passwordchange.show()
We will push an update next week.