I need help with my Nokia n9.

I have 2 applications that has 2 icons in the desktop. One is Calendar and Toshl

For Toshl, when I hold the icon to delete it, one icon can be deleted while the other one can't. I tried to delete the icon that can be deleted, but it also deleted the icon that I can't delete.

I think this has something to do with the Shortcuts, application. I still have that application. But now only 3 appears while before 4 of the icons appears and Toshl is one of them.

The next problem is the Calendar app. I didn't do anything and yet it suddenly appeared in my homescreen. I can't delete it also. So now I have 2 icons for both Toshl and Calendar app.

http://i7.photobucket.com/albums/y27...2_16-20-13.png

How can I resolve it? I tried using terminal to delete it, but I'm not very good at it. I'm not trying to tweak or do anything with my phone, it just want to remove those duplicate icons. Thank you.