Title: Fatal Error
Last modified: August 20, 2016

---

# Fatal Error

 *  [Killiana](https://wordpress.org/support/users/killiana/)
 * (@killiana)
 * [14 years, 9 months ago](https://wordpress.org/support/topic/fatal-error-350/)
 * Hello,
 * I just upgraded to 3.2.1 and I got this error on my website
 *     ```
       Fatal error: Cannot redeclare username_exists() in /home/f1zone/domains/f1zone.net/public_html/f1press/wp-includes/user.php on line 1298
       ```
   
 * Site URL : [http://www.f1zone.net/site/](http://www.f1zone.net/site/)
 * I de-activated all the plugins but nothing changed. I need your help please.
 * Thanks !

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

 *  Thread Starter [Killiana](https://wordpress.org/support/users/killiana/)
 * (@killiana)
 * [14 years, 9 months ago](https://wordpress.org/support/topic/fatal-error-350/#post-2222271)
 * Any help please?
 * The code in that line is
 *     ```
       /**
        * Checks whether the given username exists.
        *
        * @since 2.0.0
        *
        * @param string $username Username.
        * @return null|int The user's ID on success, and null on failure.
        */
       function username_exists( $username ) {
       	if ( $user = get_userdatabylogin( $username ) ) {
       		return $user->ID;
       	} else {
       		return null;
       	}
       }
       ```
   
 *  Thread Starter [Killiana](https://wordpress.org/support/users/killiana/)
 * (@killiana)
 * [14 years, 9 months ago](https://wordpress.org/support/topic/fatal-error-350/#post-2222325)
 * Any update on that issue? it’s critical..
 *  Thread Starter [Killiana](https://wordpress.org/support/users/killiana/)
 * (@killiana)
 * [14 years, 9 months ago](https://wordpress.org/support/topic/fatal-error-350/#post-2222383)
 * My site is down since forever..any help is appreciated.
 *  Thread Starter [Killiana](https://wordpress.org/support/users/killiana/)
 * (@killiana)
 * [14 years, 9 months ago](https://wordpress.org/support/topic/fatal-error-350/#post-2222412)
 * OMG I can’t pick a single answer, a lot of answers from you guys.
 * THANKS !

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

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

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 4 replies
 * 1 participant
 * Last reply from: [Killiana](https://wordpress.org/support/users/killiana/)
 * Last activity: [14 years, 9 months ago](https://wordpress.org/support/topic/fatal-error-350/#post-2222412)
 * Status: not resolved

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