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At some point in time, y'all must have encountered a 500 Internal Server Error while trying to access a particular website. As a visitor, you may ignore information technology, but as a website administrator, you cannot afford to ignore it and get rid of it equally shortly as possible.

Not only the website frontend but also the WordPress administrator dashboard might not be available to access. In this article, we will walk you through some of the reasons why this fault occurs, how to avoid it, and why information technology is important to invest in a reliable spider web hosting server to avoid this error and improve website uptime.

The frequent occurrence of 500 internal server mistake is bad for the reputation of your business organisation and will lead to visitors losing trust in your brand. Besides the reputation, information technology volition also injure your search engine rankings. Hence it is advised to avoid this error, and deeply understand what it is all about and how to troubleshoot.

Sometimes it could be due to the problem in website configuration, while sometimes it has something to do with issues at the server, which might be beyond your command.

What is a 500 internal server error?

In one of our previous articles well-nigh HTTP Status codes , nosotros have covered in particular the type of errors website users might encounter. The 3-digit error status code that starts with '5' and looks similar 5XX indicates that there is no problem with the asking fabricated by the user agent.

But due to another reasons, the server is not able to procedure the asking due to incorrect configuration of the website or due to some upshot encountered within the server.

While 500 specifically indicates that the webserver is facing some kind of an Internal issue due to which the request made by the user amanuensis could non be processed at that moment. Sometimes this kind of fault is momentary, which lasts for a few minutes and sometimes just a few seconds.

But if the problem persists, chances are that in that location is a problem with the website. Besides, it is found that often the issue arises due to wrong configuration of the website, which you can prepare at your end.

But if this is very frequent you should discuss the trouble with the webserver tech support team to help you troubleshoot the consequence. Some other popular 5XX error codes are 502 Bad Gateway error, 504 Gateway timeout error

For a more specific kind of consequence, yous need to look into the specific error lawmaking using tools similar MS IIS. Some of the most ordinarily occurring codes are as shown below:

Code List of 500 Internal Server Errors
Lawmaking	Explanation
500.11	The awarding crashes downwards on the webserver when a request is made by a user agent.
500.12	The awarding is under the restart process on the webserver.
500.13	The web server is as well busy with other requests. In other words, it is overloaded with a large number of requests, which is more its capacity.
500.xiv	Invalid application configuration on the server. The WordPress website installation is incorrect or corrupt.
500.15	Directly requests for GLOBAL.ASA is non allowed.
500.16	UNC authorization credentials are incorrect.
500.17	URL authorization store cannot exist institute.
500.18	URL authorization shop cannot be opened.
500.19	Information for this file is configured improperly in the Metabase.
500.2	URL authorization scope cannot exist plant.
500.21	Module not recognized.
500.5	A rewrite error occurred during RQ_BEGIN_REQUEST notification handling. A configuration or inbound rule execution error occurred.

How to Fix 500 Internal Server Error in WordPress?

If in that location is a 500 internal server error on your WordPress website the users will not exist able to access whatsoever of its pages, which indicates that at that place could be a problem at the root directory. Hither are some of the about common issues due to which your WordPress website has an HTTP 500 Internal Server Mistake.

Decadent .htaccess file
Exceeding PHP Memory Limit
Faulty Plugin or theme Result
Corrupted Core Files
Check File Permissions
Unsupported PHP Version
Incorrect DNS entries
Problem with Server itself

#i – Corrupt .htaccess file

One of the most common causes of WordPress 500 fault is a corrupted .htaccess file (found in the root directory) that might arise due to a plugin update, theme update, etc., or during the migration from i server to some other. To set up this mistake you tin supplant the current htaccess file with another one.

Sometimes you might not be able to come across the .htaccess file, in such cases check the hidden files in the root directory every bit well. Also, make certain that the file is correctly named. Read everything about the htaccess file in wordpress here.

#2 – Exceeding PHP Memory Limit

This could happen due to some plugin or theme consuming a lot of processing memory, or if you are using too many plugins. If your WordPress website is consuming a lot of memory to procedure a request y'all might run out of retention limit.

Y'all can increase the memory limit to troubleshoot this problem. This could exist washed by making some modifications to the wp-config file or php.ini file.

Add this code to the wp-config file:

You tin increase the retentiveness limit by changing 64M to 128M, 256M, and so on.

Alternatively, yous can increase the retention limit through php.ini. Edit your php.ini, find out the line of code that defines the retention limit which will look like this:

memory_limit = 32M ;

You tin can increase it to 64M, 128M, 256M, and so on.

Another related issue is with Maximum Execution Time. If a request made past the user agent takes more than the fourth dimension limit set for the website procedure asking. You lot can increment the max execution time limit either through the wp-config file, .htaccess file, or php.ini file.

To define the Max Execution Time using wp-config, add the following code or if the code already exists increase its value:

set_time_limit(300);

To increment the time limit using the .htaccess file, add together or edit the following code:

php_value max_execution_time 300

You tin edit php.ini also to increment the execution fourth dimension using this code:

max_execution_time = 300

#3 – Faulty Plugin or theme Effect

If you lot have recently installed or updated a plugin yous might need to investigate if that is causing an issue. If you tin admission the admin dashboard, you tin can deactivate all the plugins at once, and then refresh the website to bank check if it works now.

If it works reactivate the plugins one subsequently the other and bank check after activating each of the plugins. That way yous will be able to place which plugin is causing the event. If after deactivating the plugins the website is still not working then the issue is patently not due to any of the plugins.

If you are not able to access the admin backend you tin rename the directory of each of the plugins, and while doing so you lot tin can bank check the website after renaming each of these and see if the problem resolves. As well, it is recommended to keep all the plugins updated.

Try updating or switching the theme of your WordPress website and see if the internal server error is gone. Sometimes outdated or decadent scripts and codes within the theme files can lead to an internal server error. If you have encountered this error afterward a theme update, report this to the theme programmer, and restore it to a previous version.

That is why it is recommended to accept regular backups of your website, especially before making themes, plugins, or core installation updates. Some hosting providers also provide you with Mistake logs that might help you further identify the cause of the error.

Hosting providers like WPOven provide you with a console within your hosting panel to update the plugins, themes, core files, and many other direction tools for amend functioning and command over your website along with regular backup and restore options.

#four – Corrupted Core Files

You can upload the updated files through an FTP server to troubleshoot the internal server mistake on your WordPress website. You can upload the updated files from WordPress.com and upload them to the server using FTP software like FileZilla etc.

#5 – Check File Permissions

To make the WordPress website piece of work perfectly fine, it is essential to have all the directory and file permissions correctly configured. The recommended file permission settings are as follows:

755 for all folders and sub-folders.
644 for all files.

Wrong permission settings will lead to the blocking of some plugins, themes, and scripts to work.

At WPOven yous can use the "Fix Permissions" tool for fixing file permissions in Sites->Tools in the dashboard.

#6 – Unsupported PHP Version

There are outdated PHP versions that are not supported by the latest WordPress version anymore. Ane of the latest versions 7.0, 7.1, 7.2, 7.3, and seven.four are highly recommended. You can refer to our article on PHP Versions as well for more details.

Also, you lot can find the latest PHP 8 version hither. WPOVen – Managed WordPress Hosting Comes with the latest PHP Updates.

#7 Incorrect DNS entries

If your DNS is pointing to a server other than your hosting server, the visitors will not be able to access it. Brand certain that the DNS entries are accurate.

#eight – Trouble with Server itself

If none of them piece of work you should immediately contact the tech support team of your web hosting provider to troubleshoot. There might be a problem with either the server hardware or the software. If at that place are frequent outage reports at the server end yous should consider switching to another company.

Bank check out our article on WordPress Security here

Tips to avoid Internal Server Error and Quick Troubleshoot

First and foremost, go along all the plugins, themes, and WordPress Cadre updated. The outdated versions tend to create more problems and are more prone to security threats similar malware and hacking.
Always take regular backups of your WordPress website files and database. Use a adept plugin that takes regular backup and can easily restore the website to the desired version.
Turn on 'Debugging'. It is a small trick that will help you hands debug the website, by giving you vital information nearly the crusade of the issue. It can be enabled past adding the post-obit line of code in your wp-config file: "ascertain( "WP_DEBUG", true );"
Increase your PHP Memory Limit (as explained above).
Utilize a highly reliable server.
Utilise security plugins to browse and audit your website regularly.
Use reliable and trusted plugins and themes only, that provide good back up.

Some of the top web server hosting companies similar WPOven accept a system in place to keep a close sentinel on the hosted WordPress websites and send out a notification to the website administrator. There are some free web-based website monitoring tools similar UptimeRobot, that also send notifications in example the website is not working for any reason.

Steps for troubleshooting of 500 Internal Server Error.

Pace 1: Reload the page, sometimes at that place is a momentary issue with the server, so a unproblematic reload of the page volition go y'all to the folio.

Footstep 2: Clear Browser Enshroud: Using Hard Refresh (Ctrl + F5) y'all can clear the enshroud, moreover you can go to browser history and clear the browser enshroud.

Pace three: Endeavour accessing the wp-admin backend of your WordPress installation.

Step iv: If you tin can access the admin dashboard, deactivate all the plugins to see if it resolves the problem. If it does, start reactivating the plugins i by ane to identify the i creating the problem. You take to get rid of that plugin. Earlier doing this make sure that all the plugins are updated to the latest version.

Step 5: If you are unable to resolve the result, switch the theme to the default one, if it resolves the issue you will accept to update the theme or change the theme. Probably some of the theme files could go corrupted, hence you can re-upload the files.

Step 6: If the problem persists, bank check the .htaccess file, file permissions, too as (every bit explained above),

Footstep 7: You tin can as well check out your mistake logs and find out the possible causes that trigger 500 internal server errors. All yous demand to exercise is log in to the FTP client and and then navigate to the Error log Directory and either download it or directly open information technology in an editor.

This will help you lot to narrow downwardly the upshot so that you easily figure out the exact trouble and you can immediately gear up information technology. You tin also read our consummate guide on How to access and set up WordPress error logs?

Step 8: It is likewise highly possible that the 500 internal server error tin can generate due to corrupt WordPress core files, specially if you lot are running an old website. To fix this, the easiest affair yous can do is to completely supervene upon the old WordPress cadre files with the new ones without affecting your WordPress theme and plugin.

To reinstall WordPress core files, you can refer to our detailed and comprehensive mail service on How to reinstall WordPress using 4 best methods?

Step 9: If the problem persists, immediately contact the tech back up squad to aid you resolve the issue and make your website live.

Where tin can you run into a 500 internal server mistake?

HTTP 500 Mistake on a WordPress Website:
500 Error on Linux:
500 internal server error NGINX

HTTP 500 internal server Error on a WordPress Website:

If your website has encountered an internal server error, you will not exist able to admission the website. In extreme cases, you might not be able to access even the wp-admin backend.

Typically, your browser volition show any of the following messages:

"500 Internal Server Error"
"HTTP 500"
"Internal Server Error"
"HTTP 500 – Internal Server Error"
"500 Fault"
"HTTP Error 500"
"500 – Internal Server Error"
"500 Internal Server Error. Sorry, something went incorrect."
"500. That'southward an error. There was an fault. Delight try once again later. That'southward all we know."
"The website cannot brandish the page – HTTP 500."
"Is currently unable to handle this request. HTTP ERROR 500."

500 internal server Error on Linux:

If your website visitors are getting the 500 HTML fault status you can troubleshoot it using Linux likewise, peculiarly if the mistake arises due to any of the CGI or PERL scripts.

Also, the error tin be due to the not-compatible versions of PHP and Apache. In such a case you lot demand to upgrade PHP or recompile Apache. In Apache you lot tin go through the fault logs in the post-obit locations:

/usr/local/apache/logs/error_log

/usr/local/apache/logs/suphp_log

You lot tin can employ Linux commands to fix the errors, for instance, to modify the file and folder permissions you have to employ the following commands:

cd public_html

notice . -type d -exec chmod 755 {} \;

notice . -type f -exec chmod 644 {} \;

500 Server Error on some Popular Websites:

Though there are lesser instances of 500 internal server errors on the world'southward nigh visited website, even and then they have encountered the error at some point in time. Some websites have very creatively designed error pages as well. Some of the examples are shown beneath:

FitBit.com:

Amazon

Disney

GitHub

Some of the leading Content Delivery Network providers like Amazon's AWS offer to create a custom page when at that place is a 500 internal server error.

500 internal server error NGINX

When there is an result that happens on the server-side, due to which NGINX is unable to render a proper response, it starts showing 500 internal server mistake. The effect can happen due to multiple reasons some of the near common are, express file permissions and errors in the script.

However, you tin can easily fix this fault by following these simple methods:

Forcefulness refresh or restart your webpage.
Check out your Error logs.
Check out the Scripts.
Check whether acceptable permission is granted to folders and files.
Bank check all your redirections.

How does 500 Internal Server Mistake Effects your Search Engine Ranking?

Non-availability of websites, or in other terms longer and frequent downtime of the website can negatively impact your search engine rankings. Google ever strives to provide a good user feel to the visitors, and hence if many visitors see the problem at dissimilar points in time it will downgrade the ranking of the website for certain.

Hence it is important to take these errors seriously and go along monitoring the websites. Using Google Analytics likewise as Search Panel you tin can see how many visitors faced the error. Besides the user feel, Google crawler likewise crawls the website regularly, and while crawling it found that the website is not bachelor consistently which will negatively touch the rankings.

Determination

The seriousness of the 500 Internal Server Error depends on how frequent the error occurs, and the cause of the fault. If the error lies with the website files or configuration and then you need to fix it or go professional assist.

But if errors often occur due to some problem with the server'southward hardware or software and then you need to immediately migrate to a more reliable and trusted hosting visitor

General FAQ

What does 500 internal server error hateful?

The Hypertext Transfer Protocol (HTTP) 500 Internal Server Mistake response code represents that the server is unable to fulfill a particular asking that was made by a user at the front end of the website.

How do I ready internal server error?

The all-time and quickest means to fix the internal server errors are

Endeavor reloading your spider web pages. Practice it with F2 or Ctrl+F5
Clear cache of your browsers.
Delete all browser cookies.
Y'all can also contact the website admin to let them know

What causes internal server error?

500 Internal Server errors are caused due to server errors where the server may not exist able to fulfill whatever particular request at that time. It may besides cause due to some policy issues with your APIs.

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Source: https://www.wpoven.com/blog/500-internal-server-error/