Warning: Headers already sent (after report)

Hi,

I was debugging a form admin type of plugin and the report works great but the page is not able to be displayed (only the report). Under the report, there is this error message:

Warning: Cannot modify header information - headers already sent by (output started at /home/extremra/sandbox/wp-content/plugins/kint-php-debugger/src/raveren/kint/Kint.class.php:263) in /home/extremra/sandbox/wp-includes/pluggable.php on line 1207

Thanks for listening 🙂

https://wordpress.org/plugins/kint-php-debugger/