Guild of Writers

I'm trying to make my age but this error keeps poppin' up when I hit the create book button. Here's what the console looks like:

Compiled with Python version 2.5
Checking for installed Python.... got it!
Traceback <most recent call last>:
File "<string>", line 55, in <module>
File "C:\Program Files\Blender Foundation\Blender\.blender\scripts\alcremsmanager.py". line 38, in <module>
from alcspecialobjs import *
File "C:\Program Files\Blender Foundation\Blender\.blender\scripts\alcspecialobjs.py", line 35, in <module>
from alc_AlcScript import *
File "C:\Program Files\Blender Foundation\Blender\.blender\scripts\alc_AlcScript.py, line 28, in <module>
import yam1
ImportError: No module named yam1

You don't have yaml. you need to install yaml. check the "how to install pyprp and it's dependencies" page on the wiki.