Title: PHP warning almost every second
Last modified: July 19, 2021

---

# PHP warning almost every second

 *  [Dave Loodts](https://wordpress.org/support/users/davelo/)
 * (@davelo)
 * [4 years, 10 months ago](https://wordpress.org/support/topic/php-warning-almost-every-second/)
 * We’ve got this error almost EVERY second:
    PHP Warning: Cannot modify header 
   information – headers already sent in /www/wp-content/plugins/moosend-email-marketing/
   vendor/moosend/website-tracking/src/Cookie.php on line 8
 * It slows down our site.
    Can you please fix this code? Thanks

Viewing 3 replies - 1 through 3 (of 3 total)

 *  [Olaf Lederer](https://wordpress.org/support/users/finalwebsites/)
 * (@finalwebsites)
 * [4 years, 9 months ago](https://wordpress.org/support/topic/php-warning-almost-every-second/#post-14790948)
 * Hi Dave,
 * I’m using the plugin for different sites and never had an issue like the one 
   you have.
    I checked the file you’ve mentioned and the PHP function that that
   is called in line 8 is
 * `https://www.php.net/manual/en/function.setrawcookie.php`
 * That PHP function doesn’t return any content (like the warning says). Maybe it’s
   something related to your hosting? Do you checked the PHP error log?
 *  Thread Starter [Dave Loodts](https://wordpress.org/support/users/davelo/)
 * (@davelo)
 * [4 years, 9 months ago](https://wordpress.org/support/topic/php-warning-almost-every-second/#post-14794358)
 * Hi Olaf, thank you for helping. It’s really the plugin code itself. I hired a
   senior developer to investigate it, he was highly surprised about the low quality
   of the code. He found a leak that we have passed to Moosend on 23 july. No reaction.
   
   Just look at the ticket here, no response. They don’t really care, or they are
   overworked.
 * Regarding privacy, this is also an issue as it sends a request on every page 
   visit. Well, that’s normal for a tracking plugin.
 * And last week, our site went down because Moosend’s tracking server went down.
   Because of the bad code of the plugin, an issue with their servers will cause
   outages of the connected site.
    And it just slows down the site.
 * We have advised the client to search for alternatives.
 *  [Olaf Lederer](https://wordpress.org/support/users/finalwebsites/)
 * (@finalwebsites)
 * [4 years, 9 months ago](https://wordpress.org/support/topic/php-warning-almost-every-second/#post-14794510)
 * Hello Dave,
 * you’re right, they don’t answer questions via the forum.
    Try their support, 
   while I’m in the same timezone (CET) their response time if often less than two
   hours and they are very helpful even for user with a free account.
 * > I hired a senior developer to investigate it, he was highly surprised about
   > the low quality of the code.
 * I can’t confirm that, the code from Moosend that I’ve studied at the weekend 
   was pretty good and again I’m using the plugin for multiple clients.
 * Anyway try to contact them via the support. I’m sure they will help you 🙂
    I
   found an unanswered question of mine from more than a year ago and got more than
   50 emails from them.
 * > And last week, our site went down because Moosend’s tracking server went down.
 * Yes, that outage was a real problem. They promised the same day to solve it for
   good that it never happens again.

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘PHP warning almost every second’ is closed to new replies.

 * ![](https://ps.w.org/moosend-email-marketing/assets/icon-256x256.png?rev=1640707)
 * [Moosend Website Connector](https://wordpress.org/plugins/moosend-email-marketing/)
 * [Support Threads](https://wordpress.org/support/plugin/moosend-email-marketing/)
 * [Active Topics](https://wordpress.org/support/plugin/moosend-email-marketing/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/moosend-email-marketing/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/moosend-email-marketing/reviews/)

 * 3 replies
 * 2 participants
 * Last reply from: [Olaf Lederer](https://wordpress.org/support/users/finalwebsites/)
 * Last activity: [4 years, 9 months ago](https://wordpress.org/support/topic/php-warning-almost-every-second/#post-14794510)
 * Status: not resolved