getRecords doesn't return all columns (SOLVED)

getRecords doesn't return all columns (SOLVED)

Hi.
I'm using the API to fetch the accounts and get some data from certain columns. However, only a few columns are returned with the call.
This is all I get: 
https://crm.zoho.com/crm/private/json/Accounts/getRecords?authtoken=token&scope=crmapi&selectColumns=All&fromIndex=1&toIndex=1

{
  • response: 
    {
    • result: 
      {
      • Accounts: 
        {
        • row: 
          {
          • no:  "1",
          • FL: 
            [
            • {
              • content:  "1251294000000233001",
              • val:  "ACCOUNTID"
              },
            • {
              • content:  "1251294000000071001",
              • val:  "SMOWNERID"
              },
            • {
              • content:  "OptiCits",
              • val:  "Account Owner"
              },
            • {
              • content:  "Inactivo",
              • val:  "Rating"
              },
            • {
              • content:  "UCLG",
              • val:  "Account Name"
              },
            • {
              • content:  "2015-04-22 16:25:43",
              • val:  "Created Time"
              },
            • {
              • content:  "2015-04-22 16:25:43",
              • val:  "Modified Time"
              },
            • {
              • content:  "2015-04-22 16:25:43",
              • val:  "Last Activity Time"
              }
            ]
          }
        }
      },
    • uri:  "/crm/private/json/Accounts/getRecords"
    }
}

Selecting the columns manually, for example selectColumns=Accounts(Account Type), doesn't work.
However, in the method getFields I get all the fields, as it says in the docs ( https://www.zoho.com/crm/help/api/modules-fields.html#Accounts).
What's the problem?