Redirect problem; page not found [date/time] / /[shurly short url]

May be it helps to investigate the warning, that I use Custom Formatters module together with Shurly.
And that I show than the Shurly Custom Formatter in a view.

The Shurly Customer Formatter code is the following:

if ($items->getValue() && isset($items->getValue()[0]['uri'])) {
  $shorturl = $items->getValue()[0]['uri'];
  //$items->getValue()[0]['uri']; is the field in which the url which I want to use through shurly is set
  $shortitem = shurly_shorten($items->getValue()[0]['uri']);
  if (isset($shortitem['shortUrl'])) {
    $shorturl = $shortitem['shortUrl'];
  }
  $output  = '<a  href="' . $shorturl . '" class="btn btn-primary"  rel="nofollow" target="_blank"> Output text</a>';
  return $output;
}

Greetings,

Hi,

Could I somehow use the hook_shurly_redirect_after() for this?
Something like https://drupal.stackexchange.com/questions/53339/drupal-shurly-before-re... but then for redirect_after?

greetings, Martijn