Cannot Get Into Dashboard | WordPress.org

Hi,

I tried to log in to my back end and I get the following error message and can’t log in.

Authenticated User Login
Warning: Cannot modify header information – headers already sent by (output started at /home/customer/www/dogcopywriter.com/public_html/wp-includes/l10n.php:335) in /home/customer/www/dogcopywriter.com/public_html/wp-login.php on line 530

then there is another error message reading:

Error: Cookies are blocked due to unexpected output. For help, please see this documentation or try the support forums.

I am not a techie. I have no idea how this happened and what to do. Can anyone help me?

I recently updated to the new version of WP. Just to throw that in.

The page I need help with: [log in to see the link]



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