Fatal error: Uncaught Error: Interface 'Nette\HtmlStringable' not found in /mnt/volume_lon1_01/backend/adminseppi/vendor/nette/utils/src/Utils/Html.php:234 Stack trace: #0 {main} thrown in /mnt/volume_lon1_01/backend/adminseppi/vendor/nette/utils/src/Utils/Html.php on line 234