Smartcrawl SEO Checkup scan is giving the following, and not working:
There was an error crawling xxx.com/, we weren't able to get meaningful results
Error starting crawl: Recommendation There was an error crawling http://xxx.com/, we weren't able to get meaningful results
On running plugin conflict test the Page Cache, and Asset Optimization in Hummingbird seems to cause conflict, when disabled it works fine. Please check chat notes for more info.