Questionnaire submission results in an empty page.

Code:
<form method="post" action="/sp/makeClaim">

  <div class="text-center" style="padding-bottom: 20px;">

    <select name="spId">

      <option value="-1"<?php $this->printSelected($spId, -1);?>>-- Choose a Service Provider --</option>

      <?php

      foreach ($spData as $id => $name)

      {

        ?>

        <option value="<?php echo $id; ?>"<?php $this->printSelected($spId, $id);?>><?php print($name); ?></option>

      <?php

      }

      ?>

    </select>

  </div>



  <div class="text-center">

    <input type="submit" class="btn btn-default sp" value="Make Claim from List Above" /><br />

    or<br />

    <a href="/sp/create/" class="btn btn-default sp">Add Your Service Provider Information</a>

  </div>

</form>





The Controller code:





public function makeClaim()

{

  $formDefaults = array(

    'spId' => -1

  );



  if ($this->input->post())

  {

    foreach ($formDefaults as $key => $defaultValue)

    {

      $$key = trim($this->input->post($key));



      if ($spId == -1)

      {

        $this->addError('You must choose the service provider you wish to claim.');

      }

    }



    $sp = $this->getEm()->getRepository('Entities\ServiceProvider')->findOneBy(array('id' => $spId));

    if (is_null($sp))

    {

      $this->addError('A service provider with that ID could not be found.');

    }



    if (count($this->getErrors()) == 0)

    {

      $claim = new \Entities\Claim();

      $claim->setUser($this->getUser());

      $claim->setSP($sp);

      $claim->setStatus('New');

      $claim->setLastUpdated(new DateTime(date('Y-m-d H:i:s')));

      $claim->setLastUpdatedBy($this->getUser()->getRealName() . ' (' . $this->getUser()->getId() . ')');



      $this->em->persist($claim);

      $this->em->flush();

      $this->_redirect(true, 'Your claim on that service provider account has been submitted for review. We will contact you with a status update after we review your request.', '/sp/makeClaim/');

    }