I'm technically responsible for a small website. There are two pages which have a title containing the same word ("Stammbücher"). Now an SEO agency is telling me that this is a severe problem and we should remove the word from the title of the first page.
I'm worried about whether this is a good idea. The main page, where they want the word to be removed, is the one ranking better for that word. The other page (with the longer URL) has a much lower ranking for that word, but on the other hand, much better content dealing with this word.
Is there any definite answer on whether the title of the first page should be changed to remove that particular keyword?
Edit: These are the titles of the two pages: A: Stammbücher und Gästebücher für die Hochzeit B: Stammbücher für Standesamt, Hochzeit und Kirche