Title: 500 Internal Server Error Last modified: August 24, 2016 --- # 500 Internal Server Error * [zschmid08](https://wordpress.org/support/users/zschmid08/) * (@zschmid08) * [10 years, 11 months ago](https://wordpress.org/support/topic/500-internal-server-error-391/) * Was trying to install a new theme to my WordPress, then somehow I got a 500 Internal Server Error. * I know there are plenty of forums on how to solve this. But I reaaly would like a step-by-step process on solving this. If anyone can help, it would be greatly appreciated. * Many thanks! Viewing 5 replies - 1 through 5 (of 5 total) * Moderator [James Huff](https://wordpress.org/support/users/macmanx/) * (@macmanx) * [10 years, 11 months ago](https://wordpress.org/support/topic/500-internal-server-error-391/#post-6151889) * Internal server errors (error 500) are often caused by plugin or theme function conflicts, so if you have access to your admin panel, try deactivating all plugins. If you don’t have access to your admin panel, try [manually resetting your plugins](https://codex.wordpress.org/FAQ_Troubleshooting#How_to_deactivate_all_plugins_when_not_able_to_access_the_administrative_menus.3F)( no Dashboard access required). If that resolves the issue, reactivate each one individually until you find the cause. * If that does not resolve the issue, try switching to the Twenty Fourteen theme to rule-out a theme-specific issue. If you don’t have access to your admin panel, access your server via [FTP or SFTP](https://codex.wordpress.org/FTP_Clients), navigate to `/wp-content/themes/` and rename the directory of your currently active theme. This will force the default theme to activate and hopefully rule- out a theme-specific issue. * If that does not resolve the issue, it’s possible that a `.htaccess` rule could be the source of the problem. To check for this, access your server via FTP or SFTP and rename the `.htaccess` file. If you can’t find a `.htaccess` file, make sure that you have set your FTP or SFTP client to view invisible files. * If you weren’t able to resolve the issue by either resetting your plugins and theme or renaming your .htaccess file, we may be able to help, but we’ll need a more detailed error message. Internal server errors are usually described in more detail in the server error log. If you have access to your server error log, generate the error again, note the date and time, then immediately check your server error log for any errors that occurred during that time period. If you don’t have access to your server error log, ask your hosting provider to look for you. * [dnaman](https://wordpress.org/support/users/dnaman/) * (@dnaman) * [10 years, 11 months ago](https://wordpress.org/support/topic/500-internal-server-error-391/#post-6151903) * Hi James, I too am getting the same 500 error when trying to get to my site ( sandicolife.com) now. I upgraded to 4.2.2 yesterday and now i can’t get to the home page. * I’ve deactivated my plugins. * I tried to switch to the twenty fourteen site but i could not even preview it.( icon kept spinning). * Here is the error log: * [Wed May 20 19:09:18 2015] [error] [client 92.94.185.45] Failed loading /usr/ php/54/usr/lib64/php/modules/ZendGuardLoader.so: /usr/php/54/usr/lib64/php/modules/ ZendGuardLoader.so: undefined symbol: zend_new_interned_string, referer: [http://www.webconnectu.com/bm/salema.roah/](http://www.webconnectu.com/bm/salema.roah/) [ Wed May 20 19:09:18 2015] [error] [client 92.94.185.45] Failed loading /usr/php/ 54/usr/lib64/php/modules/ZendGuardLoader.so: /usr/php/54/usr/lib64/php/modules/ ZendGuardLoader.so: undefined symbol: zend_new_interned_string, referer: [http://www.webconnectu.com/bm/salema.roah/](http://www.webconnectu.com/bm/salema.roah/)[ Wed May 20 19:09:18 2015] [notice] [client 85.25.109.10] mod_rbl: 85.25.109.10 is listed in RBL. [Wed May 20 19:09:18 2015] [error] [client 92.94.185.45] Failed loading /usr/php/54/usr/lib64/php/modules/ZendGuardLoader.so: /usr/php/54/usr/ lib64/php/modules/ZendGuardLoader.so: undefined symbol: zend_new_interned_string, referer: [http://www.webconnectu.com/bm/salema.roah/](http://www.webconnectu.com/bm/salema.roah/)[ Wed May 20 19:09:18 2015] [error] [client 92.94.185.45] Failed loading /usr/php/ 54/usr/lib64/php/modules/ZendGuardLoader.so: /usr/php/54/usr/lib64/php/modules/ ZendGuardLoader.so: undefined symbol: zend_new_interned_string, referer: [http://www.webconnectu.com/bm/sosa.igbins/](http://www.webconnectu.com/bm/sosa.igbins/)[ Wed May 20 19:09:18 2015] [notice] [client 85.25.109.10] mod_rbl: 85.25.109.10 is listed in RBL. [Wed May 20 19:09:19 2015] [notice] [client 85.25.109.10] mod_rbl: 85.25.109.10 is listed in RBL. [Wed May 20 19:09:19 2015] [notice] [client 85.25.109.10] mod_rbl: 85.25.109.10 is listed in RBL. * Please help! Thanks! * [dnaman](https://wordpress.org/support/users/dnaman/) * (@dnaman) * [10 years, 11 months ago](https://wordpress.org/support/topic/500-internal-server-error-391/#post-6151927) * Also, this is my .htaccess file (in /public_html folder) * # Use PHP54 Single php.ini as default AddHandler application/x-httpd-php54s . php * # BEGIN WordPress RewriteEngine On RewriteBase / RewriteRule ^index\.php$ – [L] RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME}!- d RewriteRule . /index.php [L] * # END WordPress * [accuwebhosting](https://wordpress.org/support/users/accuwebhosting/) * (@accuwebhosting) * [10 years, 11 months ago](https://wordpress.org/support/topic/500-internal-server-error-391/#post-6151932) * Hi dnaman, * ZendGuardLoader is an encryption engine to encrypt the PHP code in order to prevent PHP code being copied. It is a popular 3rd party module Web Hosts are using to encrypt the PHP code. If the ZendGuardLoader engines are not available the module simply will not function and throw an error. To prevent errors either identify and remove the modules or fix the loaders so they load properly. * If you can edit the php.ini file, look for zend_extension lines that reference those components and comment the lines and Restart the web server software and the errors should go away. You can also contact your web hosting providers to fix this for you. * Thanks, * Moderator [James Huff](https://wordpress.org/support/users/macmanx/) * (@macmanx) * [10 years, 11 months ago](https://wordpress.org/support/topic/500-internal-server-error-391/#post-6151934) * dnaman, most Error 500’s are different, so if you still have trouble after Accuwebhosting’s suggestion, please open your own thread: [https://wordpress.org/support/forum/how-to-and-troubleshooting#postform](https://wordpress.org/support/forum/how-to-and-troubleshooting#postform) Viewing 5 replies - 1 through 5 (of 5 total) The topic ‘500 Internal Server Error’ is closed to new replies. ## Tags * [500 error](https://wordpress.org/support/topic-tag/500-error/) * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/) * 5 replies * 4 participants * Last reply from: [James Huff](https://wordpress.org/support/users/macmanx/) * Last activity: [10 years, 11 months ago](https://wordpress.org/support/topic/500-internal-server-error-391/#post-6151934) * Status: not resolved ## Topics ### Topics with no replies ### Non-support topics ### Resolved topics ### Unresolved topics ### All topics