Warning: Cannot modify header information – headers already sent by (output started at /home/pz000020/public_html/wp-config.php:1) in /home/pz000020/public_html/wp-admin/post.php on line 197
Warning: Cannot modify header information – headers already sent by (output started at /home/pz000020/public_html/wp-config.php:1) in /home/pz000020/public_html/wp-includes/pluggable.php on line 1171
These errors are often cause by a plugin or theme conflict.
With Dashboard Access
Try deactivating all plugins. If that resolves the issue, reactivate each one individually until you find the cause.
If that does not resolve the issue, try switching to the default theme for your version of WordPress to rule-out a theme-specific issue (theme functions can interfere like plugins).
Without Dashboard Access
Try manually resetting your plugins (no Dashboard access required). If that resolves the issue, reactivate each one individually until you find the cause.
If that does not resolve the issue, access your server via SFTP or FTP, or a file manager in your hosting account’s control panel, navigate to /wp-content/themes/ and rename the directory of your currently active theme. This will force the default theme to activate and hopefully rule-out a theme-specific issue (theme functions can interfere like plugins).
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If neither of those worked, then it could have been a fault update that is causing this error. In that case try downloading WordPress again, access your server via SFTP or FTP, or a file manager in your hosting account’s control panel, and delete then replace your copies of everything except the wp-config.php file and the /wp-content/ directory with fresh copies from the download. This will effectively replace all of your core files without damaging your content and settings.
Some uploaders tend to be unreliable when overwriting files, so don’t forget to delete the original files before replacing them.
