まず>>515のint ちんこid = Player.GetComponent<PhotonView>().viewID;
からGetComponent<PhotonView>().RPC("頭装備", PhotonTargets.All, objs);
の5行を消して以下に書き換えよ


Player頭生成 = PhotonNetwork.Instantiate(itm.アイテム名, pos, Quaternion.identity, 0) as GameObject;
int ちんこid = Player頭生成.GetComponent<PhotonView>().viewID;

object[] objs = new object[1];
objs[0] = ちんこid;
GetComponent<PhotonView>().RPC("頭装備", PhotonTargets.All, objs);