Title: [Plugin: Jetpack by WordPress.com] Sharing Throwing PHP Library error
Last modified: August 20, 2016

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# [Plugin: Jetpack by WordPress.com] Sharing Throwing PHP Library error

 *  [artychan](https://wordpress.org/support/users/artychan/)
 * (@artychan)
 * [13 years, 8 months ago](https://wordpress.org/support/topic/plugin-jetpack-by-wordpresscom-sharing-throwing-php-library-error/)
 * Using latest version of Jetpack, latest WordPress Multisite
 * Regardless of whether I actually have mbstring installed, I find it interesting
   that when saving the settings for Sharing, whether I get an error message is 
   inconsistent.
 * On the main site: no errors
    On a subsite: Warning! Multibyte support missing!
 * This plugin will work without it, but multibyte support is used if available.
   You may see minor problems with Tweets and other sharing services.
 * [http://wordpress.org/extend/plugins/jetpack/](http://wordpress.org/extend/plugins/jetpack/)

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

 *  Plugin Contributor [Tim Moore](https://wordpress.org/support/users/tmoorewp/)
 * (@tmoorewp)
 * [13 years, 8 months ago](https://wordpress.org/support/topic/plugin-jetpack-by-wordpresscom-sharing-throwing-php-library-error/#post-3007492)
 * Thanks for the report. I’ll take a look at this and see what we can do to resolve
   these error messages.
 *  [Luke Breen](https://wordpress.org/support/users/origami-penguin/)
 * (@origami-penguin)
 * [12 years, 10 months ago](https://wordpress.org/support/topic/plugin-jetpack-by-wordpresscom-sharing-throwing-php-library-error/#post-3007589)
 * Sorry, I understand this may not be the best place to ask but I’m struggling 
   to find anywhere else…
 * I’m getting an error on my Sharing Settings page that states:
 * “Warning! Multibyte support missing!
 * This plugin will work without it, but multibyte support is used if available.
   You may see minor problems with Tweets and other sharing services.”
 * I think this issue is effecting the Publize feature of the jetpack plugin. How
   do I fix the issue? I have no idea what it means and the only link I’ve found
   sends me here: [http://www.php.net/manual/en/mbstring.installation.php](http://www.php.net/manual/en/mbstring.installation.php)
 * Is this an issue with how my hosting account is set up or is there an error with
   the theme, or wp install??
 *  Plugin Author [Jeremy Herve](https://wordpress.org/support/users/jeherve/)
 * (@jeherve)
 * Jetpack Mechanic 🚀
 * [12 years, 10 months ago](https://wordpress.org/support/topic/plugin-jetpack-by-wordpresscom-sharing-throwing-php-library-error/#post-3007590)
 * [@origami](https://wordpress.org/support/users/origami/) Penguin Could you contact
   your hosting provider, and let them know about the error? They should be able
   to fix this problem for you.
 * Thanks!

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

The topic ‘[Plugin: Jetpack by WordPress.com] Sharing Throwing PHP Library error’
is closed to new replies.

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 * 3 replies
 * 4 participants
 * Last reply from: [Jeremy Herve](https://wordpress.org/support/users/jeherve/)
 * Last activity: [12 years, 10 months ago](https://wordpress.org/support/topic/plugin-jetpack-by-wordpresscom-sharing-throwing-php-library-error/#post-3007590)
 * Status: not a support question