A white square has appeared on my SG5 that I can't get rid of. Any suggestions on what I can do?

[Gessa M]

I can adjust the size of the box but not get rid of it completely. It contains links to
Mobile bookmarks
Samsung mobile
Australia post appointments

 

[STARGATE]

Hello Gessa.
Can you post a screenshot (picture) of your screen with that square?

 

[Gessa M]

Hope this works

 

[Javier P]

Welcome to the forums. That looks like a widget, what happens if you long press on it? Do you get a menu with the 'remove' option in it? Or maybe a delete/bin icon on top of the screen where you can drag it?