Title: Cannot modify header information
Last modified: October 7, 2023

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# Cannot modify header information

 *  Resolved [pdvmedia](https://wordpress.org/support/users/pdvmedia/)
 * (@pdvmedia)
 * [2 years, 6 months ago](https://wordpress.org/support/topic/cannot-modify-header-information-192/)
 * Hello,
 * I have been using this plugin for years, never had a problem. Unfortunately now
   I got one. None of my link is working. If I try to click on one of them I have
   this warning:
 * **Warning**: Cannot modify header information – headers already sent by (output
   started at /home/customer/www/bussolafinanziaria.it/public_html/index.php:1) 
   in **/home/customer/www/bussolafinanziaria.it/public_html/wp-content/plugins/
   pretty-link/app/models/PrliUtils.php** on line **223**
 * How to solve this?
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fcannot-modify-header-information-192%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 1 replies (of 1 total)

 *  Thread Starter [pdvmedia](https://wordpress.org/support/users/pdvmedia/)
 * (@pdvmedia)
 * [2 years, 6 months ago](https://wordpress.org/support/topic/cannot-modify-header-information-192/#post-17108179)
 * I solved the issue, it was a conflict with another plugin.

Viewing 1 replies (of 1 total)

The topic ‘Cannot modify header information’ is closed to new replies.

 * ![](https://ps.w.org/pretty-link/assets/icon-256x256.png?rev=2503434)
 * [PrettyLinks - Affiliate Links, Link Branding, Link Tracking, Marketing and Stripe Payments Plugin](https://wordpress.org/plugins/pretty-link/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/pretty-link/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/pretty-link/)
 * [Active Topics](https://wordpress.org/support/plugin/pretty-link/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/pretty-link/unresolved/)
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 * 1 reply
 * 1 participant
 * Last reply from: [pdvmedia](https://wordpress.org/support/users/pdvmedia/)
 * Last activity: [2 years, 6 months ago](https://wordpress.org/support/topic/cannot-modify-header-information-192/#post-17108179)
 * Status: resolved