I see it. The dot represents your finger and you long-press the icon but it doesn't move, And your texts are empty. The icon thing sounds like your launcher is locked. Without know which phone and launcher you are using makes it hard to tell you where to look, but if you have launcher settings, that's the best place to look. It also might mean you have it in guest mode where only certain parts of the phone are accessible. It s for when you let a child or a friend use your phone without worrying about them either getting into your personal stuff, or messing it up accidentally.