Why is there an empty App Widget open on my screen all the time?

[Android Central Question]

I'm using a Samsung Galaxy A5 and, every time I use an app, this blank App Widget shows up. There's nothing in it, and all I can do is close it. Is there a way to keep it from opening at all?

 

[belodion]

What shape is it?

 

[appninza]

I think that you have installed an app but widget of that app doesn't support your phone. You need to find that app.

 

[kittandroid]

It's rectangular, like all the other apps.

 

[kittandroid]

This appeared from the time I got the phone - before I had installed any other apps.

 

[belodion]

Are we talking here about app icons rather than widgets?

 

[kittandroid]

No, it actually says 'App Widget' in the top of the box, where it would say 'messages' or 'gmail'. It looks like an open app, but it's empty.