Title: plugin cause 500 Internal Server Error Last modified: April 30, 2023 --- # plugin cause 500 Internal Server Error * [schmekbu](https://wordpress.org/support/users/kaklappen/) * (@kaklappen) * [3 years ago](https://wordpress.org/support/topic/plugin-cause-500-internal-server-error-2/) * 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?also discussing here:[https://wordpress.org/support/topic/plugin-cause-500-internal-server-error/](https://wordpress.org/support/topic/plugin-cause-500-internal-server-error/) - This topic was modified 3 years ago by [schmekbu](https://wordpress.org/support/users/kaklappen/). * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fplugin-cause-500-internal-server-error-2%2F%3Foutput_format%3Dmd&locale=en_US) to see the link]_ Viewing 14 replies - 1 through 14 (of 14 total) * Plugin Contributor [Marko Vasiljevic](https://wordpress.org/support/users/vmarko/) * (@vmarko) * [3 years ago](https://wordpress.org/support/topic/plugin-cause-500-internal-server-error-2/#post-16700908) * Hello [@kaklappen](https://wordpress.org/support/users/kaklappen/) * Thank you for reaching out and I am happy to assist you with this. * Can you please share the entire error in the error log? Does the issue persist if you temporarily disable W3 Total Cache? * Thanks! * Thread Starter [schmekbu](https://wordpress.org/support/users/kaklappen/) * (@kaklappen) * [3 years ago](https://wordpress.org/support/topic/plugin-cause-500-internal-server-error-2/#post-16703502) * error is gone after deactivating w3 total cache * log * PHP Fatal error: Uncaught TypeError: Unsupported operand types: string * int in /var/www/vaegabond.com/wp-includes/functions.php:75″ Stack trace:” * **0 /var/www/vaegabond.com/wp-includes/functions.php(179): current_time(‘timestamp’, false)”** * **1 /var/www/vaegabond.com/wp-content/plugins/w3-total-cache/Generic_Plugin.php( 471): date_i18n(‘Y-m-d H:i:s’)”** * **2 [internal function]: W3TC\Generic_Plugin->ob_callback(‘\t