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The HTTP Internal Server Error 500 typically occurs when the server encounters an unexpected condition that prevents it from fulfilling the request. This post will help you understand the causes of the error and find appropriate solutions. Show
Table of ContentsWhat Is The 500 Internal Server Error?It is considered a general error on the server side due to a non-specified problem. According to the RFC Standards, the definition is as follows: The 500 (Internal Server Error) status code indicates that the server encountered an unexpected condition that prevented it from fulfilling the request. This is not an error in your connection or browser; rather, it indicates an issue on the website’s end. The White Screen of Death of Error 500The “White Screen of Death” (WSOD) is a term used to describe the 500 HTTP error, and other 5XX HTTP error codes when the server cannot serve any content to the user. Some browsers like Safari or Firefox present this white screen: Alternatively, you have browsers that translate the Internal 500 error, showing different informative messages. Different 500 Error MessagesAlthough this error may appear in many ways, they all mean the same. The following displays a few examples of how you might see a
When the option to display errors to the user is enabled, and the execution is not interrupted, the server can provide more comprehensive information about errors than when the user encounters a WSOD (White Screen Of Death). In such cases, the server may display crucial details related to the error, like the file and line number where the error occurred, a description of the error, and sometimes a stack trace. The following screenshot shows an example of this, detailing a 500 internal server error on a WordPress page: In the following section, you will come across various scenarios that can lead to the occurrence of the 500 error. 500 Internal Server Error Causes
How To Fix The 500 Internal ErrorAs previously mentioned, the reasons for a 500 error are varied and might not be immediately obvious in the browser. To solve it, check the error logs or print them in the browser for further diagnosis. When it comes to How To Get More Details About The Errors In PHPThe answer is simple: display the errors or inspect the logs. The latter option is preferable, as a 500 internal server error can sometimes cause the execution to break, resulting in nothing but a WSOD (White Screen Of Death). Hey, just a heads up! To enable logs, you have two options: one for generic PHP applications, and another for WordPress sites. How to show and log errors in plain PHP applications
Additonally, you can also set these directives in the PHP configuration file
How to show PHP errors in WordPressYou can use the WP_DEBUG constant in the wp-config.php file.This will enable debug mode in WordPress and display all PHP Errors, Warnings, and Notices on the screen.
You can get a more detailed explanation and refined configurations in the wordpress.org debugging documentation. Microsoft Internet Information Services IIS shows 500 error detailsIf your web server is a Microsoft IIS; versions 7.0 and later have a subset of 500.XX . This subcategory of 500 error codes will help you identify the cause of the error. One final tip: When inspecting logs, ensure you’re looking in the right placeWhen a 500 internal server error occurs in PHP, it is categorized as an ‘Error’ level message, rather than a ‘Warning’ or ‘Notice.Therefore, when examining logs or debugging screens for troubleshooting purposes, focus exclusively on Errors and skip Warning and Notice messages. All HTTP Status Codes200 OK 201 Created 202 Accepted 203 Non-Authoritative Information 204 No Content 205 Reset Content 206 Partial Content 207 Multi-Status 208 Already Reported 226 IM Used 300 Multiple Choices 301 Moved Permanently 302 Found 303 See Other 304 Not Modified 305 Use Proxy 307 Temporary Redirect 308 Permanent Redirect 400 Bad Request 401 Unauthorized 402 Payment Required 403 Forbidden 404 Not Found 405 Method Not Allowed 406 Not Acceptable 407 Proxy Authentication Required 408 Request Timeout 409 Conflict 410 Gone 411 Length Required 412 Precondition Failed 413 Payload Too Large 414 Request-URI Too Long 415 Unsupported Media Type 416 Requested Range Not Satisfiable 417 Expectation Failed 418 I’m A Teapot 421 Misdirected Request 422 Unprocessable Entity 423 Locked 424 Failed Dependency 426 Upgrade Required 428 Precondition Required 429 Too Many Requests 431 Request Header Fields Too Large 444 Connection Closed Without Response 451 Unavailable For Legal Reasons 499 Client Closed Request We are techies passionate about WordPress. With wetopi, a Managed WordPress Hosting, we want to minimize the friction that every professional faces when working and hosting WordPress projects. |