WSOD when trying to enable Setup in-kind receipts?
CiviCRM version : 4.7.2
Error:
PHP Fatal error: Call to undefined method CRM_Utils_VersionCheck::singleton() in /var/www/drupal7/sites/all/modules/Extensions/CDNTaxReceipts/cdntaxreceipts.functions.inc on line 1169, referer: http://localhost/drupal7/civicrm/cdntaxreceipts/settings