WARNING: PHP: 2024-05-21 06:44:45 (CEST): "Argument 1 passed to elgg_view_entity_icon() must be an instance of ElggEntity, null given, called in /var/www/html/mod/vda_activity/views/default/forms/vda_activity/save.php on line 100 and defined" in file /var/www/html/vendor/elgg/elgg/engine/lib/views.php (line 936)