Warning: GtkTreeView::append_column() expects argument 1 to be GtkTreeViewColumn, null given in /var/www/projects/unstable/texto/classes/events/events.class.inc on line 71

Warning: GtkTreeView::append_column() expects argument 1 to be GtkTreeViewColumn, null given in /var/www/projects/unstable/texto/classes/events/events.class.inc on line 72