Fatal error: Uncaught Error: Class 'Symfony\Component\HttpKernel\Fragment\AbstractSurrogateFragmentRenderer' not found in /mnt/volume_lon1_01/backend/admin/vendor/symfony/http-kernel/Fragment/SsiFragmentRenderer.php:19
Stack trace:
#0 {main}
thrown in /mnt/volume_lon1_01/backend/admin/vendor/symfony/http-kernel/Fragment/SsiFragmentRenderer.php on line 19