Hi @stevenjaycohen,
This has to do with the way WordPress loads files and scripts. In general, WordPress uses a bootstrap process to load its PHP files and scripts. So, even though /tracker/ is not part of the WordPress install, it looks like it’s still interfering with the bootstrap process, likely because that index.php file is being used somewhere in a plugin or theme code.
There is a PHP header function call on that referenced line (1478) of the wp-cache-phase2.php file, which is why that PHP warning occurs. That warning error is caused by output being sent to the browser before the HTTP headers are set in the PHP script.
The error message is indicating that some extraneous output started at line 1 of the tracker/index.php file. This could be caused by a number of things, such as whitespace before an opening PHP tag or an echo or print statement that is executed before the headers are set.
To fix this error, you’ll need to locate the source of the output and remove it or move it to a more appropriate location. I can’t give more specific advice without knowing what that tracker/index.php file does exactly.
I hope this helps.
Plugin Support
Jay
(@bluejay77)
Hi there,
It has been more than one week since we have heard from you, so I’m marking this topic as resolved.
But if you have any further questions or need some more help, you’re welcome to reply here or open another thread.
