Checking SEO health with Ahrefs - Shows my pages all have two title pages?

Site URL: https://www.covertstylist.com/

I am beginning to learn about and fine tune my site's SEO. I signed up for Ahrefs and all of my pages are flaggings to have "multiple title tags" which it suggests can hurt my search results and rankings. One of the two tags listed is what I have added for SEO and titles - great! The other says "My Page" for each of my pages so it seems like it is an easy setting to change that I might be missing somewhere on my site's set up. Any ideas?

The screenshot just shows a few but all the pages have this error.

Thank you so much for your answer! I removed the code completely and crawled my pages again.  That seemed to do the trick! So much to learn and so thankful for the help and support.

I am having the same problem with ubersuggest and SEMrush. What code would I insert for these two?