Title: PHP Fatal errors
Last modified: November 28, 2016

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# PHP Fatal errors

 *  [different-thinking](https://wordpress.org/support/users/different-thinking/)
 * (@different-thinking)
 * [9 years, 6 months ago](https://wordpress.org/support/topic/php-fatal-errors-2/)
 * Hello,
 * I’m evaluating security plugins for my word press sites. I really like ithemes
   security but it produces fatal PHP errors.
    When iThemes Security is activated
   I get the following error messages:
 *     ```
       [28-Nov-2016 08:22:41 UTC] PHP Fatal error:  Allowed memory size of 268435456 bytes exhausted (tried to allocate 72 bytes) in /www/htdocs/rsieber/blog/wp-includes/wp-db.php on line 2406
       [28-Nov-2016 08:26:10 UTC] PHP Fatal error:  Allowed memory size of 268435456 bytes exhausted (tried to allocate 72 bytes) in /www/htdocs/rsieber/blog/wp-includes/wp-db.php on line 2406
       [28-Nov-2016 08:29:54 UTC] PHP Fatal error:  Allowed memory size of 268435456 bytes exhausted (tried to allocate 72 bytes) in /www/htdocs/rsieber/blog/wp-includes/wp-db.php on line 2406
       [28-Nov-2016 08:33:11 UTC] PHP Fatal error:  Allowed memory size of 268435456 bytes exhausted (tried to allocate 72 bytes) in /www/htdocs/rsieber/blog/wp-includes/wp-db.php on line 2406
       [28-Nov-2016 09:33:14 Europe/Berlin] PHP Fatal error:  Cannot redeclare wp_fix_server_vars() (previously declared in 
       ```
   
 * ‹­:58) in /www/htdocs/rsieber/blog/wp-includes/load.php on line 109
    [28-Nov-
   2016 08:36:26 UTC] PHP Fatal error: Allowed memory size of 268435456 bytes exhausted(
   tried to allocate 72 bytes) in /www/htdocs/rsieber/blog/wp-includes/wp-db.php
   on line 2406 [28-Nov-2016 08:36:37 UTC] PHP Fatal error: Cannot redeclare translate()(
   previously declared in ˆÿ„:7) in /www/htdocs/rsieber/blog/wp-includes/l10n.php
   on line 106`
 * These led to HTTP 500 error messages
 * I don’t have any error messages, when the plugin is deactivated.
 * What’s going on?
 * Robert

The topic ‘PHP Fatal errors’ is closed to new replies.

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 * 0 replies
 * 1 participant
 * Last reply from: [different-thinking](https://wordpress.org/support/users/different-thinking/)
 * Last activity: [9 years, 6 months ago](https://wordpress.org/support/topic/php-fatal-errors-2/)
 * Status: not resolved