Title: HTTP 500 Errors
Last modified: December 2, 2025

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# HTTP 500 Errors

 *  Resolved [evit](https://wordpress.org/support/users/evit/)
 * (@evit)
 * [5 months, 3 weeks ago](https://wordpress.org/support/topic/http-500-errors-2/)
 * I’m seeing a bunch of HTTP 500 errors with WP-Optimize (latest) and the latest
   Wordfence. I’m seeing in my error.log:
 * thrown in /var/www/html/wp-content/plugins/wp-optimize-premium/includes/class-
   wpo-page-optimizer.php on line 61″ while reading response header from upstream,
   client: 127.0.0.1, server: myserver.com, request: “POST /?wordfence_syncAttackData
   =1764611765.8973 HTTP/1.1”, upstream: “fastcgi://unix:/run/php/php8.4-fpm.sock:”,
   host: “www.myserver.com”
   2025/12/01 18:08:41 [error] 896#896: *54323 open() “/
   var/www/html/apple-touch-icon-precomposed.png” failed (2: No such file or directory),
   client:, server: myserver.com, request: “GET /apple-touch-icon-precomposed.png
   HTTP/1.1”, host: “www.myserver.com”2025/12/01 18:08:41 [error] 896#896: *54325
   open() “/var/www/html/apple-touch-icon.png” failed (2: No such file or directory),
   client: , server: myserver.com, request: “GET /apple-touch-icon.png HTTP/1.1”,
   host: “www.myserver.com”2025/12/01 18:08:41 [error] 898#898: *54327 FastCGI sent
   in stderr: “PHP message: PHP Fatal error: Uncaught Error: Call to undefined function
   wp_optimize_minify_config() in /var/www/html/wp-content/plugins/wp-optimize-premium/
   includes/class-wpo-page-optimizer.php:61
 * Looks like WP-Optimize is causing Wordfence errors…
 * Anyone else seeing this?

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

 *  Plugin Support [jbgupdraft](https://wordpress.org/support/users/jbgupdraft/)
 * (@jbgupdraft)
 * [5 months, 2 weeks ago](https://wordpress.org/support/topic/http-500-errors-2/#post-18740733)
 * Hi,
 * Thanks for contacting us! Our developers are working on a fix for the wp_optimize_minify_config()
   error and it’s possible that this is related to the other errors you’re seeing
   in the logs.
 * If you temporarily revert to version 4.3.0 do all of these errors stop?
 * Thank you!
 *  Thread Starter [evit](https://wordpress.org/support/users/evit/)
 * (@evit)
 * [5 months, 2 weeks ago](https://wordpress.org/support/topic/http-500-errors-2/#post-18744954)
 * I don’t have the old version and don’t know where to obtain it.
 * Any eta on a fix?
 *  Plugin Support [jbgupdraft](https://wordpress.org/support/users/jbgupdraft/)
 * (@jbgupdraft)
 * [5 months, 2 weeks ago](https://wordpress.org/support/topic/http-500-errors-2/#post-18747194)
 * Hi,
 * Unfortunately I don’t have an ETA but this is being worked on for our next release.
   If you go to the main plugin page, there should be an “advanced view” link in
   the right hand sidebar. If you click that and scroll to the bottom you should
   be able to download the previous release.
 * Let me know how it goes!

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

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 * 3 replies
 * 2 participants
 * Last reply from: [jbgupdraft](https://wordpress.org/support/users/jbgupdraft/)
 * Last activity: [5 months, 2 weeks ago](https://wordpress.org/support/topic/http-500-errors-2/#post-18747194)
 * Status: resolved