Title: .backup_warnings with "Undefined variable: res,
Last modified: August 21, 2016

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# .backup_warnings with "Undefined variable: res,

 *  Resolved [georges.2312](https://wordpress.org/support/users/georges2312/)
 * (@georges2312)
 * [12 years ago](https://wordpress.org/support/topic/backup_warnings-with-undefined-variable-res/)
 * Hello, since I updated to BackupWordPress 2.6.1 and Wordfence 5.0.4 I have a 
   file called .backup_warnings appearing in my wp-content backup directory, containing
   the following text:
 * {“php”:{“efc840e2c82a2ebf06a6a622600783df”:”Undefined variable: res, …\/wp-content\/
   plugins\/wordfence\/lib\/wordfenceClass.php, 404″}}
 * Note I replaced the root of my web site by … in the string above for privacy 
   reasons.
 * Any idea what could be wrong? Thanks in advance
 * [https://wordpress.org/plugins/backupwordpress/](https://wordpress.org/plugins/backupwordpress/)

Viewing 1 replies (of 1 total)

 *  Thread Starter [georges.2312](https://wordpress.org/support/users/georges2312/)
 * (@georges2312)
 * [12 years ago](https://wordpress.org/support/topic/backup_warnings-with-undefined-variable-res/#post-4878563)
 * Problem disappeared with latest versions: Wordfence 5.0.7 and BackupWordPress
   2.6.2.
 * Many thanks

Viewing 1 replies (of 1 total)

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 * 1 reply
 * 1 participant
 * Last reply from: [georges.2312](https://wordpress.org/support/users/georges2312/)
 * Last activity: [12 years ago](https://wordpress.org/support/topic/backup_warnings-with-undefined-variable-res/#post-4878563)
 * Status: resolved