Argument 1 passed to Luogu\Repository\TeamMemberRepository::findOneByTeamAndUser() must be an instance of Luogu\Model\Team\Team, null given, called in /app/luogu-web/source/src/Serializer/Training/TrainingScoreSerializer.php on line 49

开洛谷提单看到的，洛谷题单无了吗（犯规删帖）