Lost icon on Acer Iconia One 7

[memac]

I have had this Acer Iconia One for about a month now and today one of my app Icons disappeared from my desktop. I can still run the program if I go to the App Store but it is annoying to do that every time I need it. I have looked at the forums but they all talk about an App Tray that I don't have. Has anyone else had this problem?

 

[Rukbat]

Look for an app that looks like a box of little boxes. That's the app drawer (not "tray"). Then look in there.

 

[memac]

Nope. I don't have that Icon. There is a place at the bottom of my screen that looks like a system type icon is missing. Maybe it is supposed to be there?? If it isn't there, how do I get the App Drawer back?