Title: Replacing WordPress core when recieving error after update
Last modified: August 30, 2016

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# Replacing WordPress core when recieving error after update

 *  [sambu](https://wordpress.org/support/users/sambu/)
 * (@sambu)
 * [10 years, 10 months ago](https://wordpress.org/support/topic/replacing-wordpress-core-when-recieving-error-after-update/)
 * Hi all
 * After updating to 4.4 I am receiving the following error:
 * Warning: call_user_func_array() expects parameter 1 to be a valid callback, function‘
   wp_maybe_load_embeds’ not found or invalid function name in /home/username/public_html/
   wp-includes/plugin.php on line 503
 * Fatal error: Call to undefined function wp_installing() in /home/username/public_html/
   wp-includes/l10n.php on line 638
 * My guess is that the files did not install properly during the update.
 * If i were to replace the wp-admin and wp-includes folders from a fresh install
   of WordPress 4.4 would I loose any content?

Viewing 1 replies (of 1 total)

 *  [petercralen](https://wordpress.org/support/users/petercralen/)
 * (@petercralen)
 * [10 years, 10 months ago](https://wordpress.org/support/topic/replacing-wordpress-core-when-recieving-error-after-update/#post-6834724)
 * Hi,
 * It is safe to replace these folders, you will not lose any content or settings.

Viewing 1 replies (of 1 total)

 The topic ‘Replacing WordPress core when recieving error after update’ is closed
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## Tags

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

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 1 reply
 * 2 participants
 * Last reply from: [petercralen](https://wordpress.org/support/users/petercralen/)
 * Last activity: [10 years, 10 months ago](https://wordpress.org/support/topic/replacing-wordpress-core-when-recieving-error-after-update/#post-6834724)
 * Status: not resolved

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