This Error arises when the number of on-site childcare places is missing. This information is recorded under Childcare Details, on the front page of the Spring Census. You will need to go to this area to see what data has been entered.
Where Type of Childcare entered says Yes in the On Site column, there needs to be a number under Number of Childcare Places . This will apply to 'After School', 'Before School', 'Holiday' or 'Under 5' care (which is distinct from the Nursery provision).
Data needs to be provided for all four childcare types, even if the school does not provide it. Click on Edit and provide the number of childcare places available, then recalculate the Spring Census.