This error indicates that your request type is set to return a value in a field via a stored procedure in your database. Stored procedures have to be added in to SQL Server by someone with access to it and this may not be possible for a customer in Access Hosting.
Whilst it is possible to take a stored procedure that already exists for another request type but if it works specifically for that request, additional alterations may be needed and this would require time from an Access Consultant.
Raise a case and should additional work be needed, Support can pass this across to the Consultancy team.