500 Internal Server Error: Causes and Fixes

A 500 Internal Server Error, also known as a generic server error, indicates a problem on the server side. However, it doesn't provide specific details about the issue. This error message can appear in various forms because websites can customize their error messages.

You may see this error in various forms, such as:

• 500 Internal Server Error
• HTTP 500 – Internal Server Error
• Internal Server Error
• HTTP 500 Internal Error
• 500 Error
• HTTP Error 500

Common causes of a 500 internal server error

1. Permissions errors

Often, a 500 error results from incorrect permissions on a file or folder. If this is the problem, you can easily fix it by changing the permission settings on the PHP or CGI script to 0775.

2. Syntax or coding errors in your CGI/Perl script

This error occurs in a CGI script when there is a syntax error, causing it to fail or display an error message instead of producing valid HTML. It's a common issue when you have a syntax error in one of your Perl CGI scripts.

• When editing your CGI script, use a plain text editor like Notepad. Avoid using Microsoft Word, as it doesn't save files in pure ASCII text format.
• Upload your CGI scripts in ASCII mode into the cgi-bin directory.
• Set the file permissions on the CGI script file and directories to chmod 755. If you use an FTP program to transfer files, right-click on the file and select Change File Attributes to set the correct permissions.
• Double-check that the Perl modules you require for your script are supported.

3. Errors in .htaccess file

If you're using an .htaccess file on your site, it might cause issues with the site's page. Make sure the .htaccess configuration is correct. Any syntax errors can result in a 500 Internal Server Error message instead of your website content.

If you're having problems with a WordPress site, check out our guide on fixing WordPress Internal Server Errors.

Solutions to fix 500 Internal Server Error

As mentioned above, the 500 Internal Server Error indicates a problem with the server, not your computer. However, there are still some steps you can take to try to resolve the issue. Here are a few suggestions:

1. Refresh the page. This may seem like a simple solution, but it can often resolve the error. You can refresh the page by clicking the refresh or reload button, pressing F5 or Ctrl+R on your keyboard, or re-entering the URL in the address bar.
   
   Even if the problem is with the web server, it may be temporary. Trying to load the page again after a short while can often be successful.
    
2. Clear your browser's cache and cookies. If there's a problem with the cached version of the page you're viewing, it could be causing HTTP 500 issues. This can help to remove any corrupted files that may be causing the error.
    
3. Disable any browser extensions or add-ons. Some extensions or add-ons can interfere with your website's functionality. Disable them and try refreshing the page.
    
4. Contact the website's administrator. If the steps above don't resolve the issue, consider reaching out to the website administrators. Informing them about the error helps you, them, and anyone else who visits the webpage.