Smart Crawl errors in search 500

Have just upgraded to the new Smart Crawl and running the Main new scan tool.

I am running a Multisite which currently has 6 subsites or Blogs in various Topics.
I know from the Site maps on each site that Smart Crawl has been updating Google and MOS
with information but this is troublesome that I cant get a proper review of any of the sites
with the search tool.

Please let me know how to fix this.