我已经将数据存储在Hive框中，但每当我在离线模式下重新启动应用程序或杀死应用程序时，即当Internet连接不存在时，数据会重置&显示空错误。

await Hive.initFlutter();
  Hive.registerAdapter<ProgressList>(ProgressListAdapter());
  Hive.registerAdapter<VideoList>(VideoListAdapter());
  Hive.registerAdapter<DashBoard>(DashBoardAdapter());
  Hive.registerAdapter<CourseDetails>(CourseDetailsAdapter());
  Hive.registerAdapter<AnnouncementsListData>(AnnouncementsListDataAdapter());
  Hive.registerAdapter<VideoAssignments>(VideoAssignmentsAdapter());
  Hive.registerAdapter<LessonDetail>(LessonDetailAdapter());
  Hive.registerAdapter<CourseQuestions>(CourseQuestionsAdapter());
  await Hive.openBox<ProgressList>("box");
  await Hive.openBox<VideoList>("video_box");
  await Hive.openBox<DashBoard>("dashboard_box");
  await Hive.openBox<CourseDetails>("course_box");
  await Hive.openBox<AnnouncementsListData>("announcement_box");
  await Hive.openBox<VideoAssignments>("vfs_feedback_box");
  await Hive.openBox<LessonDetail>("lesson_box");
  await Hive.openBox<CourseQuestions>("questions_box");
  await Hive.openBox("video_record_box");