Title: 4oo4's Replies | WordPress.org --- # 4oo4 [ ](https://wordpress.org/support/users/4oo4/) * [Profile](https://wordpress.org/support/users/4oo4/) * [Topics Started](https://wordpress.org/support/users/4oo4/topics/) * [Replies Created](https://wordpress.org/support/users/4oo4/replies/) * [Reviews Written](https://wordpress.org/support/users/4oo4/reviews/) * [Topics Replied To](https://wordpress.org/support/users/4oo4/replied-to/) * [Engagements](https://wordpress.org/support/users/4oo4/engagements/) * [Favorites](https://wordpress.org/support/users/4oo4/favorites/) Search replies: ## Forum Replies Created Viewing 3 replies - 1 through 3 (of 3 total) * Forum: [Plugins](https://wordpress.org/support/forum/plugins-and-hacks/) In reply to: [[Contact Form & SMTP Plugin for WordPress by PirateForms] Nginx 405 Error when Submitting Form](https://wordpress.org/support/topic/nginx-405-error-when-submitting-form/) * Thread Starter [4oo4](https://wordpress.org/support/users/4oo4/) * (@4oo4) * [9 years, 8 months ago](https://wordpress.org/support/topic/nginx-405-error-when-submitting-form/#post-8272400) * I ended up finding a solution, turns out my memcached wasn’t set up to properly set up to handle 405 errors. * In nginx.conf, I changed `error_page 404 502 504 = @fallback;` to `error_page 404 405 502 504 = @fallback;` and it started accepting the POST requests. * Thanks for looking! * Forum: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/) In reply to: [XML-RPC 500 Error – Ubuntu 16.04 (nginx/php-fpm)](https://wordpress.org/support/topic/xml-rpc-500-error-ubuntu-16-04-nginxphp-fpm/) * Thread Starter [4oo4](https://wordpress.org/support/users/4oo4/) * (@4oo4) * [9 years, 9 months ago](https://wordpress.org/support/topic/xml-rpc-500-error-ubuntu-16-04-nginxphp-fpm/#post-8170915) * Found my solution. It turns out that my `php7.0-xml` package wasn’t installed correctly, per this: [http://www.tecfused.com/2016/09/php-fatal-error-uncaught-error-call-undefined-function-xml_parser_create/](http://www.tecfused.com/2016/09/php-fatal-error-uncaught-error-call-undefined-function-xml_parser_create/) * `php7.0-xml` was “installed”, but not showing up under my php modules when I ran `php -m`, so purging it and reinstalling it fixed it: `sudo apt-get purge php7.0-xml && sudo apt-get install php7.0-xml` * [@t-p](https://wordpress.org/support/users/t-p/), thanks again for the help! - This reply was modified 9 years, 9 months ago by [4oo4](https://wordpress.org/support/users/4oo4/). - This reply was modified 9 years, 9 months ago by [4oo4](https://wordpress.org/support/users/4oo4/). * Forum: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/) In reply to: [XML-RPC 500 Error – Ubuntu 16.04 (nginx/php-fpm)](https://wordpress.org/support/topic/xml-rpc-500-error-ubuntu-16-04-nginxphp-fpm/) * Thread Starter [4oo4](https://wordpress.org/support/users/4oo4/) * (@4oo4) * [9 years, 9 months ago](https://wordpress.org/support/topic/xml-rpc-500-error-ubuntu-16-04-nginxphp-fpm/#post-8170730) * Thanks for the quick response. * I did test this again with all my plugins deactivated, and I’m getting this in my nginx error log whether the plugins are activated or deactivated: * ``` 2016/09/11 13:40:02 [error] 2942#2942: *137 FastCGI sent in stderr: "PHP message: PHP Fatal error: Uncaught Error: Call to undefined function xml_parser_create() in /home/user/selfhost/html/wp-includes/class-IXR.php:264 Stack trace: #0 /home/user/selfhost/html/wp-includes/class-IXR.php(464): IXR_Message->parse() #1 /home/user/selfhost/html/wp-includes/class-IXR.php(432): IXR_Server->serve('__construct(Array, false, false) #3 /home/user/selfhost/html/wp-includes/class-wp-xmlrpc-server.php(197): IXR_Server->IXR_Server(Array) #4 /home/user/selfhost/html/xmlrpc.php(84): wp_xmlrpc_server->serve_request() #5 {main} thrown in /home/user/selfhost/html/wp-includes/class-IXR.php on line 264" while reading response header from upstream, client: xxx.xxx.xxx.xxx, server: mysite.com, request: "POST /xmlrpc.php HTTP/1.1", upstream: "fastcgi://unix:/var/run/php/php7.0-fpm.sock:", host: "mysite.com" ``` * In response to your question about .htaccess files, I don’t use them since I’m using nginx and I have all my configuration in the pastebin links above. * I also tried the app login with a different theme but got the same result. * Let me know if there’s anything else for me to try or other info to grab. * Thanks! - This reply was modified 9 years, 9 months ago by [4oo4](https://wordpress.org/support/users/4oo4/). Viewing 3 replies - 1 through 3 (of 3 total)