guint all_count;
g_return_if_fail (MODEST_IS_HEADER_WINDOW(self));
+
+ /* It could happen when some event is received and the window
+ was previously closed */
+ if (!MODEST_IS_HEADER_WINDOW (self))
+ return;
+
priv = MODEST_HEADER_WINDOW_GET_PRIVATE (self);
folder = modest_header_view_get_folder ((ModestHeaderView *) priv->header_view);