PHP Warning: Cannot modify header information

Try reviewing this info to solve header already sent problem: https://www.ads-software.com/support/article/faq-troubleshooting/#how-do-i-solve-the-headers-already-sent-warning-problem

Line 28 in wp-cron is

fastcgi_finish_request();

I checked and didn’t see any whitespace, or anything obvious.

To rule out any plugin/theme conflict 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).

I am working on that suggestion now. Will let ya know. Thank you.

You were right. It was All In One WP Security & Firewall plugin causing the issue.

Glad its’ sorted ??