If you are using Open Home Pro on an iPad and have recently upgraded to iOS 9, you may find the Keyboard has new shortcut icons, which are causing the keyboard to take up more space. This makes it hard to view or press the Continue button, when visitors are trying to sign in.
To fix this, you'll need to turn off these Shortcuts on your iPad.
This located is under Settings -> General -> Keyboard -> and then turn off Shortcuts. The picture below shows where this setting is in your iPad: