Fatal error: Uncaught Error: Class 'Symfony\Component\Finder\Comparator\Comparator' not found in /home/optinadmin/rfl.optin.co.nz/concrete/vendor/symfony/finder/Symfony/Component/Finder/Comparator/NumberComparator.php:36 Stack trace: #0 {main} thrown in /home/optinadmin/rfl.optin.co.nz/concrete/vendor/symfony/finder/Symfony/Component/Finder/Comparator/NumberComparator.php on line 36