My all app home button has disappeared

[Android Central Question]

My app button you know the White one that's on the center LOWER front of the phone has disappeared &I don't know what I've done to do it or how to retrieve it back in its place can you please help me to understand in kindergarten English not computerezie lingo what to do now?

 

[Javier P]

Welcome to the forums. What phone do you have?