walker::start walker_nav_menu

Hi folks, I receive the following error while using the YOP Poll plugin in the Imperial Business Theme:

Strict Standards: Declaration of description_walker::start_el() should be compatible with Walker_Nav_Menu::start_el(&$output, $item, $depth = 0, $args = Array, $id = 0)…

With other Poll plugins the error does not occur. Anything that I can do? I’d like to keep YOP Poll…

Regards
piskor02

https://ww.wp.xz.cn/plugins/wp-polls/