Title: Warning: call_user_func()
Last modified: July 29, 2021

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# Warning: call_user_func()

 *  Resolved [vanarawear](https://wordpress.org/support/users/vanarawear/)
 * (@vanarawear)
 * [4 years, 10 months ago](https://wordpress.org/support/topic/warning-call_user_func-4/)
 * Bonjour,
    Nous avons ce message qui est apparu sur notre site. Nous ne pouvons
   plus nous connecter à Word press pour le tableau de bord.
 * Warning: call_user_func() expects parameter 1 to be a valid callback, class ‘
   Jetpack_Iframe_Embed’ not found in /home/customer/www/vanarawear.com/public_html/
   wp-includes/class-wp-hook.php on line 301
 * Merci par avance,
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fwarning-call_user_func-4%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 2 replies - 1 through 2 (of 2 total)

 *  [MadHatter (a11n)](https://wordpress.org/support/users/madhattersez/)
 * (@madhattersez)
 * [4 years, 10 months ago](https://wordpress.org/support/topic/warning-call_user_func-4/#post-14720862)
 * Hello, there.
 * It sounds like something was conflicting with your original Jetpack plugin installation.
 * Would you be able to delete the /Jetpack/ folder from inside your /wp-content/
   plugins/ directory? You can do so by accessing your server through FTP access.
   Your webhost can assist you if you need additional help on how to do so.
 * Afterwards, it would be a good idea to make sure that all of your plugins, theme,
   PHP version, and core of WordPress are all updated before trying to install and
   activate Jetpack again (your host can also help with all of that). It should 
   not give you this same error, but if it does, please let us know and we can help
   from there. Thanks!
 *  Anonymous User 18700194
 * (@anonymized-18700194)
 * [4 years, 10 months ago](https://wordpress.org/support/topic/warning-call_user_func-4/#post-14743193)
 * 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.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Warning: call_user_func()’ is closed to new replies.

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 * 2 replies
 * 3 participants
 * Last reply from: Anonymous User 18700194
 * Last activity: [4 years, 10 months ago](https://wordpress.org/support/topic/warning-call_user_func-4/#post-14743193)
 * Status: resolved