This looks very wrong.... Are you using any app which could be messing with it? Goodlock/ 3rd party? Unless your screen being so zoomed in is making it act odd?
Have you attempted a simple soft reboot? Hold volume down and power until phone restarts.
*im going to assume you mean the layout not the icons in the middle box? If you are you just swipe down again to reveal more
If you look at the top of your pic you'll see a pencil Touch that it let's you change the panel to add more It's what i did on my A34 I've included a screenshot of what mine looks like now