Advance Furniture pack error message

Downloaded Advance Furniture by Pixelbiester and we keep getting the message over and over on the screen.

[!:successfully executed 11 function entries.]

We tried to save and quit but it won't go away.  We also tried copying the world to no avail.  

We even started all over and created a new world and it started up again. 

It seems to only happen in this add on pack.