Title: Fatal Error
Last modified: August 31, 2016

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# Fatal Error

 *  Resolved [yjanfada021](https://wordpress.org/support/users/yjanfada021/)
 * (@yjanfada021)
 * [10 years, 1 month ago](https://wordpress.org/support/topic/fatal-error-2102/)
 * I restore my site backup and after that I faced to “Fatal error: Call to undefined
   function mb_convert_case() in /home/greeting/public_html/wp-content/plugins/qtranslate-
   x/qtranslate_utils.php on line 504”
    in some pages. the plugin’s version is 3.4.6.4.
 * [https://wordpress.org/plugins/qtranslate-x/](https://wordpress.org/plugins/qtranslate-x/)

Viewing 1 replies (of 1 total)

 *  Plugin Author [John Clause](https://wordpress.org/support/users/johnclause/)
 * (@johnclause)
 * [10 years, 1 month ago](https://wordpress.org/support/topic/fatal-error-2102/#post-7303697)
 * ‘mb_convert_case’ is not available in older PHP installations. Sometimes it may
   be enabled at a request – ask server provider.
 * Try the latest pre-release version [https://github.com/qTranslate-Team/qtranslate-x/archive/v3.4.6.5.zip](https://github.com/qTranslate-Team/qtranslate-x/archive/v3.4.6.5.zip),
   which should have a workaround about ‘mb_convert_case’, as well as fixes of compatibility
   with WP 4.5. Reopen the issue is it does not work. Thanks!

Viewing 1 replies (of 1 total)

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

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## Tags

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

 * 1 reply
 * 2 participants
 * Last reply from: [John Clause](https://wordpress.org/support/users/johnclause/)
 * Last activity: [10 years, 1 month ago](https://wordpress.org/support/topic/fatal-error-2102/#post-7303697)
 * Status: resolved