Catmull Catmull Rom Cameras don't work after loading the savegame.

If I set the cameras, save and load the savegame, these cameras don’t work:
ERROR: Numpad Called Failed ‘CatmullRomCamera_Toggle’ : [addons\catmull-rom cameras\lua\entities\sent_catmullrom_camera\shared.lua:305] attempt to call method ‘AddPointAngle’ (a nil value)
I googled and found a couple of similar threads:
But no answer.
I use this version of catmull rom cameras:

Saving games like that do not work how source saves game files unless Garry wants to get dirty and add that implant.