Why can't I access the private box on go sms pro on my new Note 4?

[AC Question]

I just got a Samsung Galaxy note 4. I had all of my text messages synced over to my new phone. I have a password to my private box on Go sms pro. When I type that in, all I get is a picture of a safe open with the key in it, and pictures of love letters around it. I tried clicking on the picture but I can't see my messages.