SW 2015 Property Tab Builder Error

Hello,

Just the other day installed SW 2015 and went through the process of adding my custom stuff, I had in SW 2014, once I had it, just about like I wanted it..

I open up the Property Tab Builder and then clicked to open a folder and I got this error message.

Then this

I have Tech Support looking in to this issue, I'm just trying to help out, and see if any one else has run in to this.

Thanks

SolidworksGeneral