Your plugin conflicts with other JS

This breaks the rest of my javascript:

var videoid = url.match(/(?:https?:\/{2})?(?:w{3}\.)?youtu(?:be)?\.(?:com|be)(?:\/watch\?v=|\/)([^\s&]+)/);
jQuery(this).attr('href','https://www.youtube.com/embed/'+videoid[1]);

You should check for videoid

var videoid = url.match(/(?:https?:\/{2})?(?:w{3}\.)?youtu(?:be)?\.(?:com|be)(?:\/watch\?v=|\/)([^\s&]+)/);

        if( videoid )
        {
            jQuery(this).attr('href','https://www.youtube.com/embed/'+videoid[1]);
        }

https://ww.wp.xz.cn/plugins/lightbox/