Search of pages don't work

Here is the error message:

[30-Jun-2015 10:10:36 UTC] PHP Warning: Cannot modify header information – headers already sent by (output started at /home/[]/public_html/[]/wp-content/plugins/codepress-admin-columns/classes/column/custom-field.php:1) in /home/[]/public_html/[]/wp-includes/pluggable.php on line 1196

When I use the search box the url is:

https://[]/wp-admin/edit.php?s=peter&post_status=all&post_type=grave&_wpnonce=%5B%5D&_wp_http_referer=%2Fwp-admin%2Fedit.php%3Fpost_type%3Dgrave&action=-1&m=0&paged=1&mode=list

If I remove “&_wp_http_referer=%2Fwp-admin%2Fedit.php%3Fpost_type%3Dgrave” then the search will work.

Same problem. I get blank page after search or filter in admin.
How to fix it?

Either keep removing “&_wp_http_referer=%2Fwp-admin%2Fedit.php%3Fpost_type%3Dgrave” from the url each time or downgrade to 2.4.3

There was “tab” in front of the php-tag of one of our files which caused this. We fixed the issue today in version 2.4.5. Sorry about the inconvenience!

I’ve Admin Columns Pro version 3.5.1

I’ve just installed 3.5.2 version and the problem is fixed. Thanks.

Great its working fine now even for 2.4.5

Thxs for quick fix!!

Per