Hi, Ive just installed this mod and I get a popup saying "Internal Server Error"
I used version 3.0, my store is 1.39h. The details for 3.0 say its for 1.5x, does it also work with 1.39h?

I always get confused on this point as so many mods still work even when it says 1.5x in the Zencart versions.

If it works with 1.39h, what might my problem be? I search this thread for "Internal Server Error" and only found one mention of the problem but no fix.