I’m getting the following errors when attempting to login:
Warning: Cannot modify header information - headers already sent by (output started at /home/xxxxxx/public_html/wp-includes/l10n.php:335) in /home/xxxxxx/public_html/wp-includes/functions.php on line 6360
Warning: Cannot modify header information - headers already sent by (output started at /home/xxxxxx/public_html/wp-includes/l10n.php:335) in /home/xxxxxx/public_html/wp-includes/pluggable.php on line 958
Warning: Cannot modify header information - headers already sent by (output started at /home/xxxxxx/public_html/wp-includes/l10n.php:335) in /home/xxxxxx/public_html/wp-includes/pluggable.php on line 959
Warning: Cannot modify header information - headers already sent by (output started at /home/xxxxxx/public_html/wp-includes/l10n.php:335) in /home/xxxxxx/public_html/wp-includes/pluggable.php on line 960I disabled all plugins by renaming the plugin folder. I renamed the active theme hoping it would revert to another – doing so made no change. I checked l10n.php, functions.php, and pluggable.php, and made sure there are no extra spaces before or after <?php . cPanel error log is empty.
This same issue was just reported on a different WordPress site on a different server; using a different theme and plugins.
Same errors when using Firefox and Safari, and cleared browser cache, and removed all protections in browser for the sites.
Both sites are running WordPress version 5.6.2
Currently the websites are ok on the front end, and the login page, but when clicking the “Log In” button the above errors pop up.
I’m at a loss.
