Invoke not working

I have made a button which when I click it, it destroys certain game objects, everything works perfectly, except the invoke method, it just doesn't work. It doesn't return an error, it just doesn't even call the function. Maybe someone can help me figure this out?

     void OnMouseDown()
     {
         if(startButton == true)
         {
             startButton = false;
             anim = (GameObject)Instantiate(anim,new Vector3(0, 0,v3.z),transform.rotation);
             anim.transform.parent = parent;
             Destroy(destroyBg);
             Destroy (gameObject);
             Destroy(destroyAnim, time);
             generator.Generate();
             Invoke ("GuiCreate", 2);
         }
     }
 
     void GuiCreate()
     {
         guiMain = (GameObject)Instantiate(guiMain,new Vector3(0, 0,v3.z),transform.rotation);
         Debug.Log("CreateGUI was called");
     }