[SmartCrawl Pro] Smart Crawl error in admin header

Errors present:

Warning: preg_match() expects parameter 2 to be string, array given in html/websites/gillsbiz/wp-content/plugins/wpmu-dev-seo/includes/core/class-wds-controller-sitemap.php on line 173

Warning: preg_match() expects parameter 2 to be string, array given in html/websites/gillsbiz/wp-content/plugins/wpmu-dev-seo/includes/core/class-wds-controller-sitemap.php on line 176

Any ideas? Thanks