Title: 3.6.1 causes server errors Last modified: August 21, 2016 --- # 3.6.1 causes server errors * [HorrorUK](https://wordpress.org/support/users/horroruk/) * (@horroruk) * [12 years, 8 months ago](https://wordpress.org/support/topic/361-causes-server-errors/) * I upgraded to 3.6.1 due to it being a security update, but it caused server errors. * When I click on one of the links, it gives me a ‘Server error’ message on Chrome and goes blank on Firefox, but when I refresh the page, the page loads in without a problem. * I put it back to 3.6 and it works without a problem again. Viewing 15 replies - 1 through 15 (of 15 total) * [Sunder Deep Dasna](https://wordpress.org/support/users/shashank-mukherjee/) * (@shashank-mukherjee) * [12 years, 8 months ago](https://wordpress.org/support/topic/361-causes-server-errors/#post-4119719) * I have faced same problem when I updated WP to 3.6.1 version. * Error is ” Call to undefined function wp_validate_redirect()”. * Please suggest for this. * Thanks * [Borko](https://wordpress.org/support/users/media-x/) * (@media-x) * [12 years, 8 months ago](https://wordpress.org/support/topic/361-causes-server-errors/#post-4119720) * Are we talking about automatic update (from the dashboard)? Try re-uploading all files & folders – except the wp-content folder – from a fresh download of WordPress. – running the upgrade manually via wp-admin/upgrade.php * [ddramer](https://wordpress.org/support/users/ddramer/) * (@ddramer) * [12 years, 8 months ago](https://wordpress.org/support/topic/361-causes-server-errors/#post-4119723) * I installed a clean WordPress 3.6.1 and stumbled into the same problem: * Fatal error: Call to undefined function wp_validate_redirect() in wp-includes/ functions.php on line 1305 * And yes, this line was changed in 3.6 -> 3.6.1 update. * [Krishna](https://wordpress.org/support/users/1nexus/) * (@1nexus) * [12 years, 8 months ago](https://wordpress.org/support/topic/361-causes-server-errors/#post-4119725) * Please check if you have the same problem after reverting to Twenty Thirteen theme with all plugins deactivated? * Thread Starter [HorrorUK](https://wordpress.org/support/users/horroruk/) * (@horroruk) * [12 years, 8 months ago](https://wordpress.org/support/topic/361-causes-server-errors/#post-4119728) * I tried the manual option, but unfortunately I get the same thing. * [Borko](https://wordpress.org/support/users/media-x/) * (@media-x) * [12 years, 8 months ago](https://wordpress.org/support/topic/361-causes-server-errors/#post-4119729) * Try what Krishna suggested. * [Krishna](https://wordpress.org/support/users/1nexus/) * (@1nexus) * [12 years, 8 months ago](https://wordpress.org/support/topic/361-causes-server-errors/#post-4119731) * Try the automatic update option (though the manual option is better) by clicking the link at your dashboard – make sure that you switch to the default WordPress theme with **all** plugins deactivated. Also, don’t forget to backup your site before updating. * Thread Starter [HorrorUK](https://wordpress.org/support/users/horroruk/) * (@horroruk) * [12 years, 8 months ago](https://wordpress.org/support/topic/361-causes-server-errors/#post-4119733) * ah, didn’t see that one. * Strangely, it doesn’t allow me to change to Twenty Thirteen once it is upgraded. * I have another site with the same theme, and that updated without a problem. * It looks like it may be a possible plugin conflict, I’ll check through them and see what I can see. * [purplenaartjie](https://wordpress.org/support/users/purplenaartjie/) * (@purplenaartjie) * [12 years, 8 months ago](https://wordpress.org/support/topic/361-causes-server-errors/#post-4119735) * I got the following error when I tried to update using the link in my dashboard: * Fatal error: Call to undefined function wp_validate_redirect() in /home/fleursfl/ public_html/wp-includes/functions.php on line 1305 * Now what??? Thanks. * [Krishna](https://wordpress.org/support/users/1nexus/) * (@1nexus) * [12 years, 8 months ago](https://wordpress.org/support/topic/361-causes-server-errors/#post-4119736) * OK, deactivate all plugins, then activate them one by one while looking for the problematic one. * [Krishna](https://wordpress.org/support/users/1nexus/) * (@1nexus) * [12 years, 8 months ago](https://wordpress.org/support/topic/361-causes-server-errors/#post-4119738) * Excepting _HorrorUK_, all others may start their own topics so that it will be easier (and less confusing) for volunteers to help you. Though your problem may appear the same, the root cause of the problem can be quite different. [http://wordpress.org/support/forum/how-to-and-troubleshooting#postform](http://wordpress.org/support/forum/how-to-and-troubleshooting#postform) * [damianfrai](https://wordpress.org/support/users/damianfrai/) * (@damianfrai) * [12 years, 8 months ago](https://wordpress.org/support/topic/361-causes-server-errors/#post-4119747) * Same issue here. I am unable to save anything since updating. * [Krishna](https://wordpress.org/support/users/1nexus/) * (@1nexus) * [12 years, 8 months ago](https://wordpress.org/support/topic/361-causes-server-errors/#post-4119749) * [@damianfrai](https://wordpress.org/support/users/damianfrai/), Please start your own topic. * Thread Starter [HorrorUK](https://wordpress.org/support/users/horroruk/) * (@horroruk) * [12 years, 8 months ago](https://wordpress.org/support/topic/361-causes-server-errors/#post-4119771) * It all seems to be around the WooCommerce plugin that I’m getting the error. * [Krishna](https://wordpress.org/support/users/1nexus/) * (@1nexus) * [12 years, 8 months ago](https://wordpress.org/support/topic/361-causes-server-errors/#post-4119840) * See if this helps: [http://wordpress.org/support/topic/361-update-error?replies=14#post-4643781](http://wordpress.org/support/topic/361-update-error?replies=14#post-4643781) Viewing 15 replies - 1 through 15 (of 15 total) The topic ‘3.6.1 causes server errors’ is closed to new replies. * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/) * 15 replies * 7 participants * Last reply from: [Krishna](https://wordpress.org/support/users/1nexus/) * Last activity: [12 years, 8 months ago](https://wordpress.org/support/topic/361-causes-server-errors/#post-4119840) * Status: not resolved ## Topics ### Topics with no replies ### Non-support topics ### Resolved topics ### Unresolved topics ### All topics