[Manuel_P]

You need to Create the object first (I think, it's like that for when you attach objects to vehicles, not sure if that's for players as well)

Код:

new pObject;
pObject = CreateObject(18856, x, y, z, etc)
AttachObjectToPlayer(pObject,playerid,x, y, z, x, y, z);

I noticed you use the floats for the object position also for the object rotation, you can't do that, name them rotX, rotY, and rotZ, for example