Can’t delete the Title in Rankmath

Dear Teaam,
I have a website where the homepage shows the latest articles. In my settings, I wrote a meta title and description, but an external SEO tool shows that I have two titles. I checked with Rank Math, and it automatically adds a title %sitename% %page% %sep% %sitedesc% to my homepage. I deleted it and saved the changes, but it keeps coming back. How can I remove it?

Thank you!
best, Olga