Title: Fatel error
Last modified: August 19, 2016

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# Fatel error

 *  [plugandplay1](https://wordpress.org/support/users/plugandplay1/)
 * (@plugandplay1)
 * [17 years, 1 month ago](https://wordpress.org/support/topic/fatel-error/)
 * I was working on my blog and must have mistakenly done something to a file, but
   I don’t know what I did, or how to fix it. When I go to my site all I get is:
 * > Fatal error: Call to undefined function: add_filter() in /hsphere/local/home/
   > mikeherm/4healthconcerns.com/wp-includes/default-filters.php on line 20
 * Anyone happen to be able to help me fix this?
 * Thanks,
 * Mike

Viewing 3 replies - 1 through 3 (of 3 total)

 *  [esmi](https://wordpress.org/support/users/esmi/)
 * (@esmi)
 * [17 years, 1 month ago](https://wordpress.org/support/topic/fatel-error/#post-1051801)
 * Can you re-upload a fresh copy of the wp-includes folder?
 *  Thread Starter [plugandplay1](https://wordpress.org/support/users/plugandplay1/)
 * (@plugandplay1)
 * [17 years, 1 month ago](https://wordpress.org/support/topic/fatel-error/#post-1051826)
 * I just ftp’d it, but still getting the same thing.
 *  [esmi](https://wordpress.org/support/users/esmi/)
 * (@esmi)
 * [17 years, 1 month ago](https://wordpress.org/support/topic/fatel-error/#post-1051882)
 * Try switching temporarily to the default theme. If that solves the problem, it’s
   something in your current theme that has gone AWOL. Maybe within functions.php?

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘Fatel error’ is closed to new replies.

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 3 replies
 * 2 participants
 * Last reply from: [esmi](https://wordpress.org/support/users/esmi/)
 * Last activity: [17 years, 1 month ago](https://wordpress.org/support/topic/fatel-error/#post-1051882)
 * Status: not resolved

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