Fixed typo in fileadmin.py

flask_admin/contrib/fileadmin.py

@@ -551,7 +551,7 @@ class FileAdmin(BaseView, ActionsMixin):
 
             try:
                 shutil.rmtree(full_path)
-                self.on_diretory_delete(full_path, path)
+                self.on_directory_delete(full_path, path)
                 flash(gettext('Directory "%s" was successfully deleted.' % path))
             except Exception, ex:
                 flash(gettext('Failed to delete directory: %(error)s', error=ex), 'error')