smartcrawl not generating a sitemap properly

Hi, I just noticed that smart crawl is not generating the sitemap properly for one of my WP sites I have tried running a new scan but only 1 URL appears in the sitemap and its not a correct URL. I also tried deleting the plugin and reinstalling/ reactivating but same problem. I get a message saying "Request error contacting root URL"

Can someone help me find out what the issue is? thanks