Error in Bigbox: "Object reference not set to an instance of an object"

[vince16]

This is the error I've been getting lately while just browsing my games with Bigbox. I have no clue what that refers to, so any help would be greatly appreciated. After getting it Bigbox shuts itself off. Extremely annoying.

Here is a scan:

[cenutrio351]

I have the same problem or similar, how do you fix it?.

 

Thanks!.