Lesson 'Mathematics' (group 5A): teacher 'John Smith' not found in the teachers list.

Last updated: Mar 23, 2026

At a glance

A lesson references a teacher that no longer exists.

What causes this error

A lesson has a pinned teacher assignment that references a teacher who has been deleted or renamed after the lesson was created. The generator cannot find the teacher in the current teachers list.

How to fix it

  1. Restore the teacher — Go to the Teachers section and re-add the teacher with the exact same name.
  2. Update the lesson — Go to the Lessons section, find the affected lesson, and either clear the pinned teacher assignment or select a different teacher.
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