Im glad you had the error as well. . But im confused and still broken. What is PT3 and where do I get it? I had only used WoWAce updater and now WoWMatrix to update so I think I might be missing something.
Thanks for your hard work.
PT3.1 is Periodic Table 3.1, it is listed as LibPeriodicTable-3.1 when your looking for it to download.