Mystery Posts without Valid User

The plugin seems to work very well. On 6 blogs I had no problem. But on two of them I have posts without valid users. However, I can’t find the posts on my site at all. On one site WP CleanFix says I have over 8000 posts without a valid user. But, I only have just over 900 posts in total on my blog. Where are they? I’d be glad to delete them because most are obvious spam or adult content and I know I did not create them. I’m the only user on my sites. https://creativeblogging.ca/ – the site which has the big list. The other site had two mystery posts. I let them be added to my user name but even then I still can not find those posts on my site.

https://www.ads-software.com/plugins/wp-cleanfix/