Ohhh–Do you mean “PRPEE”? If so, then I don’t recommend that: from what I recall, PRPEE is not a fully-featured update of YABEE, and may not work as well as does YABEE. (If I recall correctly, it was adapted as far as suited its creator’s purposes, but beyond that not fully.)
If you’re going to use YABEE, I’d suggest using an older version of Blender and then using YABEE itself.
If you haven’t already done so, I recommend taking a look at this reference thread: