Field in CRM not updating

Field in CRM not updating

Hi, 
We are using a creator form to capture leads and send them to Zoho CRM.

I have mapped several fields and it works just fine.

Except for the one marked with red, that one does not update in CRM.




{ "First Name" : input.First_Name, "Last Name" : input.Last_Name, "Email" : input.Email_Id, "Leads Source" : "Blog" , "Lead Owner" : "dk@2base.com", "Lead Status" : "Newsletter", "Country" : "Denmark", "Language" : "Scandinavian", "Description" : ("input.Want_to_receive_newsletter + \n\n") }

The form is used several places, example: 

http://tyrkietblog.2base.com/2013/08/tt-pa-vandet-mange-vrelser-og-plads-til.html

How come that one field is not being mapped?

Kind regards, 
Bo Thygesen