Title: Fatal Error when saving post/page
Last modified: August 21, 2016

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# Fatal Error when saving post/page

 *  Resolved [cal52216](https://wordpress.org/support/users/cal52216/)
 * (@cal52216)
 * [12 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-when-saving-postpage/)
 * Fatal error: Call to undefined function is_ajax() in /home/content/89/8111289/
   html/wp-content/themes/vantage/inc/metaslider.php on line 93
 * I’m a bit of a Newbie so I have no idea if this is a theme issue or a Metaslider.
   Whatever it is, it’s not affecting my posts/pages being saved, but it is annoying
   and a bit worrisome.
 * Ideas?
 * [http://wordpress.org/plugins/ml-slider/](http://wordpress.org/plugins/ml-slider/)

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

 *  [Greg – SiteOrigin](https://wordpress.org/support/users/gpriday/)
 * (@gpriday)
 * [12 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-when-saving-postpage/#post-4181206)
 * This was a bit of a bug in my theme, Vantage. I’ve posted an update that fixes
   the issue. Theme updates can take a few days to get approved and go live, but
   in the mean time you can download the latest version of Vantage from SiteOrigin.
 * [http://siteorigin.com/theme/vantage/](http://siteorigin.com/theme/vantage/)
 *  Thread Starter [cal52216](https://wordpress.org/support/users/cal52216/)
 * (@cal52216)
 * [12 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-when-saving-postpage/#post-4181258)
 * Many thanks and you were spot on. I wake up this morning…update…voila! All good
   in da hood.
 *  [choselton](https://wordpress.org/support/users/choselton/)
 * (@choselton)
 * [12 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-when-saving-postpage/#post-4181262)
 * I am trying to update the theme. I just downloaded the latest version and it 
   says that the following. Do I delete the old theme? Thanks.
 * Destination folder already exists. /home2/carhosel/public_html/wp-content/themes/
   vantage/
 * Theme install failed.
 *  [Greg – SiteOrigin](https://wordpress.org/support/users/gpriday/)
 * (@gpriday)
 * [12 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-when-saving-postpage/#post-4181263)
 * The update has gone live, so you should be able to use the auto update. Just 
   navigate to Dashboard > Updates and you’ll see it there.
 *  [choselton](https://wordpress.org/support/users/choselton/)
 * (@choselton)
 * [12 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-when-saving-postpage/#post-4181264)
 * Success!!! Thank you so much.

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

The topic ‘Fatal Error when saving post/page’ is closed to new replies.

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## Tags

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

 * 5 replies
 * 3 participants
 * Last reply from: [choselton](https://wordpress.org/support/users/choselton/)
 * Last activity: [12 years, 11 months ago](https://wordpress.org/support/topic/fatal-error-when-saving-postpage/#post-4181264)
 * Status: resolved