Title: plugin cause 500 Internal Server Error
Last modified: October 28, 2023

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# plugin cause 500 Internal Server Error

 *  [schmekbu](https://wordpress.org/support/users/kaklappen/)
 * (@kaklappen)
 * [2 years, 11 months ago](https://wordpress.org/support/topic/critical-plugin-cause-500-internal-server-error/)
 * hey there
 * The plugin cause a 500 error.
 * Everything is up to date
 * did some research
 * its php 8
 * logs showing error coming from plugins/w3-total-cache
   Unsupported operand types:
   string * int in wp-includes/functions.php:75″so what is that? seems nobody cares
   at all?also discussing here:
 * [https://wordpress.org/support/topic/plugin-cause-500-internal-server-error-2/](https://wordpress.org/support/topic/plugin-cause-500-internal-server-error-2/)
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fcritical-plugin-cause-500-internal-server-error%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 5 replies - 1 through 5 (of 5 total)

 *  Plugin Contributor [Marko Vasiljevic](https://wordpress.org/support/users/vmarko/)
 * (@vmarko)
 * [2 years, 11 months ago](https://wordpress.org/support/topic/critical-plugin-cause-500-internal-server-error/#post-16912097)
 * Hello [@kaklappen](https://wordpress.org/support/users/kaklappen/)
 * Thank you for reaching out.
   First of all, I am sorry I missed your previous replies.
   I somehow managed to miss the notifications.As I’ve shared in the other topic,
   we are simply unable to replicate this problem. And as you have mentioned, the
   issue only occurs on the page that the other plugin is responsible for. This 
   being said this is the only issue of this kind reported.W3TC is fully compatible
   with PHP 8.1Can you please comment out line **471** in /wp-content/plugins/w3-
   total-cache/Generic_Plugin.phpOnce done, save the changes, go to W3TC settings,
   save all settings and purge the cache and let me know if the issue persists
 * Thanks!
 *  Thread Starter [schmekbu](https://wordpress.org/support/users/kaklappen/)
 * (@kaklappen)
 * [2 years, 11 months ago](https://wordpress.org/support/topic/critical-plugin-cause-500-internal-server-error/#post-16914073)
 * I Did
 * looks like this now:
 * // $date = date_i18n( ‘Y-m-d H:i:s’ );
 * and its working
 * nevertheless I changed it back, as I don´t know how this will affect other things
 * let me know what to do from here, or better, fix it and update the plugin 😀
 *  Plugin Contributor [Marko Vasiljevic](https://wordpress.org/support/users/vmarko/)
 * (@vmarko)
 * [2 years, 11 months ago](https://wordpress.org/support/topic/critical-plugin-cause-500-internal-server-error/#post-16918304)
 * Hello [@kaklappen](https://wordpress.org/support/users/kaklappen/)
 * We would be happy to fix the problem if we could replicate it. However, we are
   unable to do so. You can keep this line commented out for now as it will not 
   have effect in the performance.
 * It still seems that the issue is not specifically related to the W3TC but to 
   the other plugin.
 * Nevertheless, we will investigate this and try to replicate it.
 * Thanks!
 *  Thread Starter [schmekbu](https://wordpress.org/support/users/kaklappen/)
 * (@kaklappen)
 * [2 years, 9 months ago](https://wordpress.org/support/topic/critical-plugin-cause-500-internal-server-error/#post-17039954)
 * hey [@vmarko](https://wordpress.org/support/users/vmarko/) ,
 * so I talked to [@gelform](https://profiles.wordpress.org/gelform/) that you mentioned
   its related to their plugin.
 * I would recomend you guys work together ask each other questions and solve it.
 * I am here if you need to test or need more informations
 * for social link pages this would be [@gelform](https://profiles.wordpress.org/gelform/)
 * [https://wordpress.org/support/users/gelform/](https://wordpress.org/support/users/gelform/)
 * [https://wordpress.org/support/topic/plugin-cause-500-internal-server-error/](https://wordpress.org/support/topic/plugin-cause-500-internal-server-error/)
 *  Thread Starter [schmekbu](https://wordpress.org/support/users/kaklappen/)
 * (@kaklappen)
 * [2 years, 5 months ago](https://wordpress.org/support/topic/critical-plugin-cause-500-internal-server-error/#post-17341495)
 * hey guys, can you please take a look at this?

Viewing 5 replies - 1 through 5 (of 5 total)

The topic ‘plugin cause 500 Internal Server Error’ is closed to new replies.

 * ![](https://ps.w.org/w3-total-cache/assets/icon-256x256.png?rev=1041806)
 * [W3 Total Cache](https://wordpress.org/plugins/w3-total-cache/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/w3-total-cache/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/w3-total-cache/)
 * [Active Topics](https://wordpress.org/support/plugin/w3-total-cache/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/w3-total-cache/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/w3-total-cache/reviews/)

 * 5 replies
 * 2 participants
 * Last reply from: [schmekbu](https://wordpress.org/support/users/kaklappen/)
 * Last activity: [2 years, 5 months ago](https://wordpress.org/support/topic/critical-plugin-cause-500-internal-server-error/#post-17341495)
 * Status: not resolved