Strange page After Login

Hi when I log in, the tokens are now gone, but I go to this strange

page which forces me to Re-log in (a double log in).

https://mergedia.unacms.com/studio/builder_page.php?type=custom&page=Welcome-to-Mergedia

I looked at the URL and went to Studio - pages - custom page

but I do not see this "welcome to mergedia" page in there to delete

Can I please eliminate this page and double log in process?

Thanks!