Added check on empty objects

Runtime/HumanoidFree/Scripts/HumanoidControl.cs

@@ -386,6 +386,8 @@ namespace Passer.Humanoid {
         }
 
         public void LocalChangeAvatar(GameObject avatarPrefab) {
+            if (avatarPrefab == null)
+                return;
 
             Animator animator = avatarPrefab.GetComponent<Animator>();
             if (animator == null || animator.avatar == null || !animator.avatar.isValid) {

Runtime/Sites/Scripts/HumanoidInterface.cs

@@ -112,6 +112,9 @@ namespace Passer.Humanoid {
         /// <param name="gameObject">The GameObject of the Possession to add</param>
         /// This does nothing if the gamObject is not a Possession
         public void TryAddToPossessions(GameObject gameObject) {
+            if (gameObject == null)
+                return;
+
             Possessable possession = gameObject.GetComponent<Possessable>();
             if (possession == null)
                 return;