Title: Errors after editing a document
Last modified: September 1, 2016

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# Errors after editing a document

 *  [petergar](https://wordpress.org/support/users/petergar/)
 * (@petergar)
 * [9 years, 9 months ago](https://wordpress.org/support/topic/errors-after-editing-a-document/)
 * Recently updated to 4.6
    Template is pretty generic wordpress 2012
 * Getting an error when i update a page. The page appears to update properly but
   i get the following:
 * Warning: strtolower() expects parameter 1 to be string, array given in /home/
   xxx/public_html/wp-includes/formatting.php on line 1870
 * Warning: Cannot modify header information – headers already sent by (output started
   at /home/xxx/public_html/wp-includes/formatting.php:1870) in /home/xxx/public_html/
   wp-admin/post.php on line 197
 * Warning: Cannot modify header information – headers already sent by (output started
   at /home/xxx/public_html/wp-includes/formatting.php:1870) in /home/xxx/public_html/
   wp-includes/pluggable.php on line 1174

Viewing 1 replies (of 1 total)

 *  [CantoThemes](https://wordpress.org/support/users/cantothemes/)
 * (@cantothemes)
 * [9 years, 9 months ago](https://wordpress.org/support/topic/errors-after-editing-a-document/#post-7704092)
 * Hello,
 * Please disable all plugins and theme active only default theme. Then clear your
   browser cache. If you see error, reinstall your wordpress or If error is not 
   showing, maybe some plugin or theme is not compatible with WordPress 4.6. If 
   possible update your all theme and plugins.
 * Thanks,
    Raju Ahmmed

Viewing 1 replies (of 1 total)

The topic ‘Errors after editing a document’ is closed to new replies.

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 1 reply
 * 2 participants
 * Last reply from: [CantoThemes](https://wordpress.org/support/users/cantothemes/)
 * Last activity: [9 years, 9 months ago](https://wordpress.org/support/topic/errors-after-editing-a-document/#post-7704092)
 * Status: not resolved

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