There was an unexpected error in your org which is preventing this assessment check from completing: System.DmlException: Insert failed. First exception on row 0; first error: REQUIRED_FIELD_MISSING, Required fields are missing: [radius__c, height__c]: [r

Hi,

I guess you are checking a challenge on an org previously used for the "Calculate the volume of a cylinder" challenge, where the listed fields are not supposed to exist.

Make sure you make the field non mandatory before you check the challenge.

Guillaume