PHP Error

Thanks for the great plugin.

I am seeing the following error:

PHP Warning: Undefined array key "accordion" in ...plugins/jquery-archive-list-widget/classes/class-jq-archive-list-widget.php on line 369'

I see this was posted before here: https://ww.wp.xz.cn/support/topic/clean-up-php-notices/ and marked as resolved, but I still see this error.

Thanks!