I've had this issue before. Sorry if my explanation is vague, but I haven't used this toolbox in several months, so the details are a little fuzzy. The issue is that it's calling the function "split" rather than the variable. The fix is to go in and change something like:
to
And then all references to "split" should be changed to "cmap.split"

Again this is all from distant memory, so the details might be off. Hopefully this will be fixed in a future release.