After switching to a different wordpress theme, Google started adding a sitename to ALL page titles in the search results.
"Page title - Sitename"
Even when leaving the sitename area blank, Google still adds the homepage title next to every single page. This only started hapening after I switched to my new current wordpress theme.
I am using the Yoast SEO Plugin and even tried removing "%%sep%% %%sitename%%" in the settings, but still doesn't work.
I contacted the theme developer, this was his response:
"The theme doesn't set any custom title. It uses default add_theme_support( 'title-tag' ); wordpress function and Seo by Yoast works with this."
How can I remove the sitename? Do I need to change the header.php code? If not which code should I edit?