Lesson 'French' (group 8A): subgroup '8A-French' in division 'Language groups' was not found.

Last updated: Mar 23, 2026

At a glance

A lesson references a subgroup that no longer exists.

What causes this error

A lesson is assigned to a specific subgroup within a division. That subgroup has since been deleted or renamed, leaving the lesson with an invalid reference.

How to fix it

  1. Restore the subgroup — Go to the Divisions section and re-add the missing subgroup.
  2. Update the lesson — Go to the Lessons section, find the affected lesson, and assign it to an existing subgroup.
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