warning: slideshow_option undefined

On index.php lines 68 and 73, ‘slideshow_option’ can be undefined simply due to gallery #0, the photo stream. I suggest checking first whether the key ‘slideshow_option’ is in the gallery, or better yet, first using wp_parse_args($gallery, $default) first to fill in the default gallery option values.

https://ww.wp.xz.cn/plugins/awesome-flickr-gallery-plugin/