(May I suggest you Admins create a "Bug" section? Might be a better place than here to post these threads...!)
Here is another case where the use of "Modifier" is incorrect. It should be Charisma bonus instead:
Gentle Rest (Su): You can cause a living creature to fall asleep for 1 round as a melee touch attack. This ability has no effect on creatures of a higher level than you or with more HD. Undead creatures touched by you are slowed for a number of rounds equal to your Charisma modifier. Once a creature has been affected by gentle rest, it is immune to its effects for 1 day.
It is always possible to have a Charisma lower than 10!
RiTz21
http://TheOnlySheet.com