Title: Fatal Error
Last modified: August 20, 2016

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# Fatal Error

 *  [Andrestch](https://wordpress.org/support/users/andrestch/)
 * (@andrestch)
 * [13 years, 4 months ago](https://wordpress.org/support/topic/fatal-error-640/)
 * Hi, when I try to activate the pluging this message appear:
 * Fatal error: Call to undefined function filter_var() in /webcp/docs/webs/282277/
   www/site/wp-content/plugins/better-wp-security/inc/setup.php on line 188
 * What can I do?
 * Thank you!
 * [http://wordpress.org/extend/plugins/better-wp-security/](http://wordpress.org/extend/plugins/better-wp-security/)

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

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 * [Kadence Security – Password, Two Factor Authentication, and Brute Force Protection](https://wordpress.org/plugins/better-wp-security/)
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 * 0 replies
 * 1 participant
 * Last reply from: [Andrestch](https://wordpress.org/support/users/andrestch/)
 * Last activity: [13 years, 4 months ago](https://wordpress.org/support/topic/fatal-error-640/)
 * Status: not resolved