Lesson 'Drama' for group '8C': the pinned time slot is not in the list of available periods.
Last updated: Mar 23, 2026
At a glance
A manually placed lesson is pinned to a time that is now blocked or unavailable.
What causes this error
A lesson was manually placed (pinned) in the timetable at a specific time. Since then, that time has been marked as unavailable (e.g. the teacher became unavailable, or lesson restrictions were added), so the pinned position is no longer valid.
How to fix it
- Remove the conflicting restriction — Check teacher availability and lesson unavailable periods and free up the pinned slot.
- Move the lesson — Go to the timetable editor and move the pinned lesson to an available slot.
- Unpin the lesson — Remove the manual pin so the scheduler can place it automatically.