Error: The remote server returned an error: (400) Bad Request. -Zoho Creator XML RPC API

Error: The remote server returned an error: (400) Bad Request. -Zoho Creator XML RPC API

I am trying to use Zoho Creator XML RPC API. and I always get back an error which is above.

I send to this url: https://creator.zoho.com/api/xml/write/woodcliff-rewards/Rewards

With this postcontent:

<form method="POST" action=" https://creator.zoho.com/api/xml/write">

<input type="hidden" name ="authtoken" value="xxxxxxxxxxxxxxx">

<input type="hidden" name ="scope" id="scope" value="creatorapi">

<textarea name="XMLString" >

<ZohoCreator>

<applicationlist>

<application name="woodcliff-rewards">

<formlist>

<form name="Rewards">

<add>

<field name="Name">

<value>Michael Zackoff</value>

</field>

<field name="Email">

<value> michaelzackoff@yahoo.com</value>

</field>

<field name="Date_field">

<value>08/07/2015</value>

</field>

<field name="Points">

<value />

</field>

<field name="ConfirmNum">

<value>RA024B</value>

</field>

<field name="AmtSpent">

<value>675.52</value>

</field>

<field name="RateCode">

<value>LENE</value>

</field>

<field name="RoomType">

<value>EXCNKB</value>

</field>

</add>

</form>

</formlist>

</application>

</applicationlist>

</ZohoCreator>

</textarea>

<input type="hidden" name="zc_ownername" value="zoho_geoff38">

<input type="submit" value="Add Record">

</form>