When the spanspan filter is used in a twig template it causes a WSOD and displays Error: Call to undefined function Drupal\spamspan\TwigExtension\spamspan() in Drupal\spamspan\TwigExtension\SpamspanExtension->spamSpanFilter() (line 61 of modules/contrib/spamspan/src/TwigExtension/SpamspanExtension.php).
Add the spamspan filter around an email in a twig template and visit the relevant page. eg.
{{ email|spamspan }}
Modify line 61 of SpamspanExtension.php to call the spamspan function as a Drupal service. eg.
return Xss::filter(\Drupal::service('spamspan')->spamspan($string), SpamspanInterface::ALLOWED_HTML);
Closed: duplicate
3.0
Code
Closed as I realise this has already been fixed in DEV branch and is a duplicate of https://www.drupal.org/project/spamspan/issues/3349652 🐛 Call to undefined function spamspan in TwigExtension Fixed
Apologies for the noise.