At a glance

The teacher's assigned lessons exceed their maximum allowed working hours.

What causes this error

This error occurs in setups that use the flexible teacher assignment feature. When only one teacher can teach a lesson (the teacher is determined), the system computes how many total hours that teacher is forced to cover. If those hours exceed the teacher's configured maximum working hours, generation fails.

How to fix it

1. Reassign some lessons — Move some of this teacher's lessons to a different teacher so the total load is reduced.
2. Increase the maximum — In the Teachers section, raise the Max. working hours/week limit for this teacher.

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