Undefined index and depreciated call in Infinite SEO

I'm not sure where to file a bug report, so I thought I put it here.

Notice: Undefined index: sitemappath in [...]/plugins/wpmu-dev-seo/wds-files/wds-sitemaps/wds-sitemaps.php on line 455 Notice: has_cap was called with an argument that is deprecated since version 2.0! Usage of user levels by plugins and themes is deprecated. Use roles and capabilities instead. in [...]/wp-includes/functions.php on line 3006