Error message

You defined a new class - "X", but haven't added any lessons to it. Add lessons, or delete the class from the class configuration add/edit page.

What causes the error

You added a custom class using the Add more classesbutton, but didn't assign any lessons to it.

How to fix it

You have two options:

1. Delete the class if it’s not needed – Go to the class configuration section, click on "Delete added classes," and remove the unused class.
2. Assign lessons to the class – Go to the lessons section and add at least one lesson for this class.

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