Title: Fatal Error message
Last modified: August 30, 2016

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# Fatal Error message

 *  Resolved [akingsail](https://wordpress.org/support/users/akingsail/)
 * (@akingsail)
 * [10 years, 8 months ago](https://wordpress.org/support/topic/fatal-error-message-144/)
 * I updated Maxbuttons and now get the following:
 * Fatal error: Call to undefined function mb_convert_encoding() in /home/easyfl5/
   public_html/wp-content/plugins/maxbuttons/assets/libraries/url_slug.php on line
   19
 * At the moment, I have disabled the plugin but something is not right.
 * [https://wordpress.org/plugins/maxbuttons/](https://wordpress.org/plugins/maxbuttons/)

Viewing 4 replies - 1 through 4 (of 4 total)

 *  Plugin Author [Bas Schuiling](https://wordpress.org/support/users/basszje/)
 * (@basszje)
 * [10 years, 8 months ago](https://wordpress.org/support/topic/fatal-error-message-144/#post-6526715)
 * Hi,
 * Yes sorry we are aware of this problem. It was introduced by the last version
   and we didn’t realize that not all PHP installations ( most but not all ) are
   able to use this function.
 * For now, please use version [3.12](https://downloads.wordpress.org/plugin/maxbuttons.3.12.1.zip).
 * We will release an update fixing this tomorrow, which will be version 3.14
 * Sorry again for the trouble.
 *  Thread Starter [akingsail](https://wordpress.org/support/users/akingsail/)
 * (@akingsail)
 * [10 years, 8 months ago](https://wordpress.org/support/topic/fatal-error-message-144/#post-6526728)
 * No problem, Great plugin. Thanks for superquick response!
 * If I delete the latest version, will I lose all my buttons? Im not able to just
   upload the older version on top of the new one.
 *  Plugin Author [Bas Schuiling](https://wordpress.org/support/users/basszje/)
 * (@basszje)
 * [10 years, 8 months ago](https://wordpress.org/support/topic/fatal-error-message-144/#post-6526794)
 * We just released 3.14. Please check if it works for you!
 * Also no, when deleting the plugin you will not lose any data. It’s better to 
   delete the plugin, because otherwise there is a (small) risk files of the other
   version will cause problems.
 *  Thread Starter [akingsail](https://wordpress.org/support/users/akingsail/)
 * (@akingsail)
 * [10 years, 8 months ago](https://wordpress.org/support/topic/fatal-error-message-144/#post-6526897)
 * Many thanks Bas, All works perfectly now. Again thanks for the speedy response
   and a great plugin.

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘Fatal Error message’ is closed to new replies.

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## Tags

 * [fatal error](https://wordpress.org/support/topic-tag/fatal-error/)

 * 4 replies
 * 2 participants
 * Last reply from: [akingsail](https://wordpress.org/support/users/akingsail/)
 * Last activity: [10 years, 8 months ago](https://wordpress.org/support/topic/fatal-error-message-144/#post-6526897)
 * Status: resolved