Zoho Books API

Zoho Books API

I am trying to query the following api request.

https://www.zoho.com/books/api/v3/#Chart-Of-Accounts_List_chart_of_accounts

Of the optional parameters, I would like to include as per the API documentation, is the showbalances parameter.

When I run the following query : https://books.zoho.com/api/v3/chartofaccounts?organization_id=xxxx , it returns successfully.

When I run the following query : https://books.zoho.com/api/v3/chartofaccounts?organization_id=xxxx&showbalance=true, it returns the following

    [code] => 1000
    [message] => Internal Error

Thanks