Title: PHP FATAL ERROR MESSAGE
Last modified: August 20, 2016

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# PHP FATAL ERROR MESSAGE

 *  [djhornsby](https://wordpress.org/support/users/djhornsby/)
 * (@djhornsby)
 * [14 years, 9 months ago](https://wordpress.org/support/topic/php-fatal-error-message/)
 * The latest update is broken. It worked GREAT. Then I did the update to the current
   version of SEO Ultimate; when I make an update to any of my posts, I get this
   error message:
 * PHP Fatal error: Call to undefined function mb_strtolower() in C:\Inetpub\wwwroot\
   WordpressBlog\blog\wp-content\plugins\seo-ultimate\modules\slugs\slugs.php on
   line 45
 * I turn off SEO Ultimate, and everything works fine. Please provide a fix. I LOVE
   this plugin.
 * Thanks!
    Donna

Viewing 5 replies - 1 through 5 (of 5 total)

 *  [gallitin](https://wordpress.org/support/users/gallitin/)
 * (@gallitin)
 * [14 years, 9 months ago](https://wordpress.org/support/topic/php-fatal-error-message/#post-2263312)
 * Same here. What’s the deal been like 3 days.
 *  [RichardWPG](https://wordpress.org/support/users/richardwpg/)
 * (@richardwpg)
 * [14 years, 9 months ago](https://wordpress.org/support/topic/php-fatal-error-message/#post-2263401)
 * Perhaps you might want to install a fresh SEO Ultimate plugin instead of updating
   it. I know it may not be a comprehensive way to do it though.
 *  [gallitin](https://wordpress.org/support/users/gallitin/)
 * (@gallitin)
 * [14 years, 9 months ago](https://wordpress.org/support/topic/php-fatal-error-message/#post-2263441)
 * Yeah, but if I do this will I lose what I already have in the database?
 *  Thread Starter [djhornsby](https://wordpress.org/support/users/djhornsby/)
 * (@djhornsby)
 * [14 years, 9 months ago](https://wordpress.org/support/topic/php-fatal-error-message/#post-2263443)
 * I did a fresh install and it did not fix the problem. The developer needs to 
   fix this problem. This happened 3 updates back and they had it fixed within 24
   hours. I don’t know why they aren’t on it this time.
 *  Plugin Contributor [John](https://wordpress.org/support/users/johnlamansky/)
 * (@johnlamansky)
 * [14 years, 9 months ago](https://wordpress.org/support/topic/php-fatal-error-message/#post-2263536)
 * The issue should be fixed in 6.9.4. Only certain server setups were affected 
   so I didn’t catch it before launching the last couple versions. Thanks for reporting
   the issue, and I apologize for the inconvenience.

Viewing 5 replies - 1 through 5 (of 5 total)

The topic ‘PHP FATAL ERROR MESSAGE’ is closed to new replies.

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 * 5 replies
 * 4 participants
 * Last reply from: [John](https://wordpress.org/support/users/johnlamansky/)
 * Last activity: [14 years, 9 months ago](https://wordpress.org/support/topic/php-fatal-error-message/#post-2263536)
 * Status: not resolved