Today we will discuss how to fix 500 internal server errors. If you host a website anywhere on this platform? Then most likely, you have encountered an internal server error. The error says it is internal, which means it has something to do with the server.
How to debug 500 internal server errors?
There are three main causes of internal server errors,
- Malicious/incorrectly configured .htaccess file.
- Defective plugin/theme.
- Excessive use of scheduled PHP memory (memory_limit).
Furthermore, if you encounter an internal server error described above in the figure, the error is due to a PHP or MySQL issue. In particular, this may be due to insufficient memory limit of most SQL connections, broken PHP code, inappropriate file/directory permissions, invalid group ownership, bad host configuration, etc.
For initial steps, you can take the following steps:
Try after a while: In many cases, this is a time-fixed error that will be resolved automatically shortly after the server ends, which means you don’t need to take any action.
Clear browser history and cache: Try clearing browser history and cookies; This can help the website work again.
Refresh the page: Sometimes, this may be an error for a temporary purpose Once the page is refreshed, you can see the website loading again.
How to fix 500 internal server errors?
We have discussed enough 500 internal server errors and possible causes. Let’s start with the original resolution part.
1. Malicious / incorrectly configured .htaccess file
Every request that comes to the server will first go through the rules set in the .htaccess file. If the .htaccess file is corrupted or contains incorrectly configured code, the website will encounter 500 internal server errors. We’ve already covered the article on how to modify the .htaccess file; Follow the article to modify or otherwise rename the .htaccess file such as .htaccess-bkp.
2. Disable faulty plugins/themes
Open source and community-driven platforms regularly announce necessary updates over time. Most custom plugins/themes or any of the open-source plugins/themes may sometimes not be compatible with installed updates or, in rare cases, conflict with plugins/themes already installed in WordPress. You have two options for resolving the issue: Manually resolving the issue or removing/disabling the plugin/theme.
How to know it’s a plugin/theme problem?
It’s can be done by enabling WordPress in debug mode or by checking the error_log file in the WordPress installation directory.
Post enabled in debug mode. You can see the website browsing error directly,
Now, the question is how do I disable the plugin/theme if I can’t access the website backend? The answer is RENAME The DIRECTORY. You may ask, is it real? Yes, of course, just navigate to the plugin/theme installation directory and rename the plugin/theme directory to something else (eg: Litespeed-cache-rename).
If you are able to access WordPress, find Plugins → Installed Plugins → Defective Plugins and click Disable.
3. PHP memory configuration (memory_limit)
Many hosts don’t edit the default copy of php.ini global settings, where the memory_limit is set to 128MB only, or the custom-configuration limit in php.ini may not be sufficient to run your application. Due to a lack of PHP memory allocation, your application/website may encounter 500 internal server errors.
To configure memory_limit in cPanel, navigate to cPanel → MultiPHP INI Editor Select Domain, and Increase memory_limit as needed.
Still can’t understand how to fix 500 internal server errors?
Don’t worry! We take care of our clients and still encounter 500 internal server issues after going through all possible resolutions, please contact our support team. You can contact the support team via live chat or support ticket.
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