Error 42S22

SQ063: No column params.
while executing the following statement:
#line 2125 "/DAV/VAD/conductor/vdb_dsns.vspx-sql"
create method vc_render_vm_pagebody_has_vdb_template (inout control vspx_template) for "DB"."dba".page_fbb3c5d5e0c58387dc2ebb711061d421AV_VAD_conductor_vdb__dsns_vspx
{
   ?>
      <table class="MainSubData" align="center" border="0" cellspacing="0" cellpadding="4">
      <tr>
        <th align="left">Data Source Name</th><th align="left">UserName</th><th align="left">State</th><th />
        <th align="left">
          <a href="vdb_dsns.vspx?sid=<?V self.sid ?>&realm=<?V self.realm ?>&mode=remove">Remove All</a>
        </th>
        <th align="left">
          <a href="vdb_dsns.vspx?sid=<?V self.sid ?>&realm=<?V self.realm ?>&mode=test">Test All</a>
        </th>
      </tr>

      <?vsp declare mode, ds_name varchar;
          declare _err_code, _err_message varchar;
          declare _cnt integer;
          declare exit handler for sqlstate '*'
          { _err_code := __SQL_STATE; _err_message := __SQL_MESSAGE; goto error; };
          mode := get_keyword('mode', params, '');
          ds_name := get_keyword('dsn_name', params, '');

          for (select ds_dsn, ds_uid from sys_data_source) do {
              _cnt := _cnt + 1;
      ?>
        <tr>
          <td class="MainData"><?V ds_dsn?></td>
          <td class="MainData"><?V ds_uid?></td>
          <?vsp if( mode = 'test' and ( ds_name = '' or ds_name = ds_dsn ) ) {
              http('<td class="MainData">');
              declare state, msg, m_dta, res varchar;

              state := '00000';

              exec( '_sql_tables( ?, ?, ?, ?, ? )', state, msg, vector (ds_dsn, '', '', '','TABLE'), m_dta, res);
              if ('00000' = state) {
                http('OK');
              }
              else {
                http('<span class="attention_text">Failed</span>');
              }
              http('</td>');
            }
            else {
              http('<td class="MainData">Not tested</td>');
            }
          ?>
          <td class="MainData">
            <a href="vdb_dsn_edit.vspx?sid=<?V self.sid ?>&realm=<?V self.realm ?>&mode=edit&dsn_name=<?V ds_dsn ?>&login=<?V ds_uid ?>">Edit</a>
          </td>
          <td class="MainData">
            <a href="vdb_dsn_edit.vspx?sid=<?V self.sid ?>&realm=<?V self.realm ?>&mode=remove&dsn_name=<?V ds_dsn ?>&login=<?V ds_uid ?>">Remove</a>
          </td>
          <td class="MainData">
            <a href="vdb_dsns.vspx?sid=<?V self.sid ?>&realm=<?V self.realm ?>&mode=test&dsn_name=<?V ds_dsn ?>&login=<?V ds_uid ?>">Test</a>
          </td>
        </tr>
      <?vsp }
          if (0 = _cnt) {
              http('<tr><td class="MainData">No Data Sources</td></tr>');
          }
          goto next;
      error:
      ?>
         <tr>
             <td colspan="6">
         <table class="MainData" border="0" cellpadding="0" align="left" width="60%">
         <tr><td class="attention_text" colspan="2">Error</td></tr>
         <tr><td class="MainData">SQL State</td>
                <td class="MainData"><?V _err_code ?>
                </td></tr>
         <tr><td class="MainData">Error Message</td>
                <td class="MainData"><?V _err_message ?>
                </td></tr>
         </table>
             </td></tr>
      <?vsp next:
          ;
      ?>
      </table>
    <?vsp 
}