Wrong author?

Hey there,

I was wondering why does my blog show the wrong author name?

My blog is: https://premium-bay.com/

I Googled but nothing really helped, “ElitesEngineering” does not exist at all. I never used that author. It always was either “Admin” “Alex” or “flashpoint” My nickname is set to Alex. So I am really out of ideas…

Anyone? Help me out please how do I fix this?

Thanks for your time, and help!