Creatures Caves

Hey everyone !
I just downloaded the Vamvam eggs, and when I started DS I made a Vamvam egg. All was fine, the egg got a bit bigger, and then I get this error :

Creature:
Family: 4 Moniker: 001-geat-6xp2k-kpyan-k28lq-f75zd Gender: 1 Variant: 7
Catalogue Error: CLE0016: Couldn't find Tag "Default Geat Speak"

When I click continue, the game crashes with this error :

CSE0001: Caught C-style structured exception at 0x004415EC

EXCEPTION_ACCESS_VIOLATION
The thread attempted to read from or write to a virtual address for which it does not have the appropriate access.
Attempt was to read from address 0x00000000

Contained in: "public: float __thiscall MusicFaculty::Mood(void)const " in MusicFaculty.obj
Contained in: "public: virtual void __thiscall SensoryFaculty::Update(void)" in SensoryFaculty.obj
Contained in: "public: void __thiscall Creature::OwnUpdate(void)" in Creature.obj
Contained in: "public: virtual void __thiscall SkeletalCreature::Update(void)" in SkeletalCreature.obj
Contained in: "public: void __thiscall

Does anyone know how to solve this ? I tried to make the Vamvam a few times, but with no result.
Thank you !
-Fuzzyferret8