Fatal error: Uncaught Error: Call to undefined function old_empty_or_null() in /home/tlomjgm/candidature/www/resources/views/vendor/backpack/crud/fields/datetime_flatpicker.blade.php:8 Stack trace: #0 {main} thrown in /home/tlomjgm/candidature/www/resources/views/vendor/backpack/crud/fields/datetime_flatpicker.blade.php on line 8