My papyrus script is being overloaded with this mannequin script error:

[12/11/2013 - 03:57:03PM] Error: Unable to call Is3DLoaded - no native object bound to the script object, or object is of incorrect type
stack:
[None].MannequinActivatorSCRIPT.Is3DLoaded() - "" Line ?
[None].MannequinActivatorSCRIPT.OnCellAttach() - "" Line ?
[12/11/2013 - 03:57:03PM] warning: Assigning None to a non-object variable named "::temp3"
stack:
[None].MannequinActivatorSCRIPT.OnCellAttach() - "" Line ?

I googled this and it appears it's associated with a script that was included in the DG DLC. However, to date, there doesn't appear to be anything that addresses this via the unofficial patches.

This script appears to be triggered by the Wandering Mannequin Fix patch which is now somewhat obsolete. But I've never installed this patch in my game.