Title: Fatal Error
Last modified: August 19, 2016

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# Fatal Error

 *  [ssharick](https://wordpress.org/support/users/ssharick/)
 * (@ssharick)
 * [15 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-189/)
 * I was in the process of updating WordPress when it froze and would not continue.
   Now when I try to log into my blog I get this message:
 * Fatal error: Call to undefined function is_multisite() in /home/content/s/s/h/
   ssharick/html/wp-includes/wp-db.php on line 505
 * Blog address is scottsharickblog.com
 * Any suggestions?
 * Thank you

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

 *  [esmi](https://wordpress.org/support/users/esmi/)
 * (@esmi)
 * [15 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-189/#post-1581079)
 * Try:
    – switching to the default theme by renaming your current theme’s folder
   using [FTP](http://codex.wordpress.org/FTP_Clients) or whatever file management
   application your host provides.
 * – [resetting the plugins folder](http://codex.wordpress.org/FAQ_Troubleshooting#How_to_deactivate_all_plugins_when_not_able_to_access_the_administrative_menus.3F)
   by FTP or phpMyAdmin.
 * – re-running the upgrade [manually](http://codex.wordpress.org/Upgrading_WordPress).
 *  Thread Starter [ssharick](https://wordpress.org/support/users/ssharick/)
 * (@ssharick)
 * [15 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-189/#post-1581114)
 * No this doesn’t seem to work. After following the two steps I still cannot get
   into my site without getting the same error.
 *  [esmi](https://wordpress.org/support/users/esmi/)
 * (@esmi)
 * [15 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-189/#post-1581220)
 * Did you try re-running the upgrade manually?
 *  [mmurasko](https://wordpress.org/support/users/mmurasko/)
 * (@mmurasko)
 * [15 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-189/#post-1581242)
 * I have gotten this same error message several times. I have done everything stated
   on this forum, even have broghten in an expert who is a programmer who develops
   WP sites. We get it up and running and a few days later we get the same message.
 * This is getting beyond frustrating now, why is this happening? I do not want 
   to go through the efforts of uploading alot of content and then end up getting
   this same 505 error message.
 * I don’t feel this new upgrade to 3.0 is working properly because before I upgraded
   I was fine.
 * What can I do to prevent this constant error message?

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

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

## Tags

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

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 4 replies
 * 3 participants
 * Last reply from: [mmurasko](https://wordpress.org/support/users/mmurasko/)
 * Last activity: [15 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-189/#post-1581242)
 * Status: not resolved

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