Welcome to the community, @Lameez_Alexander! :grinning_face_with_big_eyes: Is this error coming as part of the response from your webhook request, or is it an Airtable-generated error?
Most APIs have limits regarding how frequently requests can be made, or how much data can be retrieved within a given period of time. It sounds like one (or both) of those issues might at play here. Review the API documentation for SurveyCTO to see what their limits are.