ошибка сохранения курса (https://sentry.lil.school/lil/backend/issues/76/) и оплаты

apps/school/views.py

@@ -187,7 +187,7 @@ class SchoolView(TemplateView):
                     date__range=date_range,
                     deactivated_at__isnull=True,
                     date__week_day__in=list(map(lambda x: 1 if x == 7 else x+1, sp.weekdays)),
-                ).values_list('id', flat=True))
+                ).exclude(title='').values_list('id', flat=True))
             prev_live_lessons = LiveLesson.objects.filter(id__in=set(prev_live_lessons)).order_by('-date')
             prev_live_lessons_exists = prev_live_lessons.exists()
             if prev_live_lessons_exists:
@@ -195,7 +195,6 @@ class SchoolView(TemplateView):
                 school_schedules_dict[0] = school_schedules_dict.get(7)
                 for ll in prev_live_lessons:
                     ll.school_schedule = school_schedules_dict.get(ll.date.isoweekday())
-
         context.update({
             'online': online,
             'prev_live_lessons': prev_live_lessons,