DevExpress Camera Control Can't Acces Camera

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VB

DevExpress

camera

hi.
Here I want to share a little bit about the problems that I have experienced in my program.
previously I've created a small application to take pictures with the camera.
I create applications using Visual Studio 2012 and VB.Net and I also use one component from DevExpress
namely Camera Control and Pictedit.
when i run the debug process to try my application, my program suddenly stopped without any notice.
I check in my code there is no error.

I would like to ask:
1. why this can happen.?
2. what the cause so that when I want to access the camera program in the laptop / PC program I suddenly stopped?
3. is there a solution to deal with problems like this.?

Thank you,
Tafary