Error 500 indicates that the server encountered an unexpected condition that prevented it from completing the request. The problem occurs on the server side and is not caused by the browser or the user.
Table of Contents
What Error 500 means
When this error appears, it means:
- the server received a valid request
- but could not process it correctly
- due to an internal configuration or execution problem
It is a generic error, which means it does not directly explain the exact cause.
Common causes
The most frequent reasons for Error 500 include:
1. Incorrect .htaccess configuration
A broken or invalid .htaccess file can prevent the server from processing requests correctly.
2. File permission issues
Incorrect permissions on files or folders can block the server from accessing required resources.
3. PHP or application errors
Errors in:
- PHP code
- WordPress plugins or themes
- PrestaShop modules
can trigger a 500 error.
4. Server-side security or misconfiguration
In some cases, the error can occur due to:
- misconfigured server rules
- failed security checks
- incompatible server directives
How to troubleshoot
To identify the cause:
- check the server error logs
- review recent changes to
.htaccess - disable recently added plugins or modules
- verify file permissions
Error logs provide the most accurate technical details.
Platform-specific help
- WordPress users should check plugin/theme conflicts or configuration issues
- PrestaShop users should review cache and module-related errors
Practical implications
Error 500 means the website is temporarily unavailable due to a server-side issue. Fixing it usually requires checking configuration files, permissions, or application logic.
Summary
Error 500 is a general server-side error indicating that something went wrong during request processing, most often due to configuration issues, file permissions, or application-level problems.