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These are the specialisms defined by the ESFA, based on the external standard code (LARS code). They are supplied by the ESFA and cannot be customised. Any specialism must have one of these set, otherwise submission to the ESFA for a certificate will be rejected.
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You will need to check if the specialism has a course option set via Entity Management → Standards → Edit Standard → Specialisms → Course Option check the dropdown as you may have the course option set to 1.1 rather that 1.0.
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The error is saying the apprentices are expected on standard version 1.0 (based on the image above you can see the version at the end of the /api/v1/standard/options/239/1)
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