Sports school problem (FIFA 15)

The player is both in the sports school and in the first team, although I did not sign him for the first team. At the same time, it is not visible when you go to the lineup item - lineup selection or team report, but is visible only in transfers - sell players and in the item - contracts. And when you try to break the contract with him, it does not work. Moreover, this player has no indicators at all, the position has not been determined. That is, there is obviously some kind of overlay in the game. Therefore, when you try to enter the sports school, the game crashes, What should I do?!!!