how i run query in CDA with ktr?

Question

i want to create chart from ktr file by CDA in Pentaho bi server

<?xml version="1.0" encoding="UTF-8"?>
<CDADescriptor>
   <DataSources>
     <Connection id="weather" type="kettle.TransFromFile">
  <KtrFile>farzanspoon.ktr</KtrFile>
  <variables datarow-name="PHONE" variable-name="TEMP"/>
</Connection>
   </DataSources>

   <DataAccess access="public"
            cache="true"
            cacheDuration="3600"
            connection="weather"
            id="current"
            type="kettle">
  <Columns/>
  <Parameters>

    <Parameter default="9121901111"
               name="PHONE"
               type="String"/>
    </Parameters>
    <Query>current_conditions</Query>
    <Output indexes="0,1"/>
</DataAccess>


</CDADescriptor>

in CDA i send phone number as TEMP(variable defined in ktr) but get this error

"Error Executing Query"

this is my ktr and db