Why does 503 Service Unavailable Error occur?
Normally, this error appears when your web server is not receiving a proper response from a PHP script. This script can be a plugin, a theme, or a custom code snippet that is misbehaving.
Moreover, if this error occurs because of a DDoS attack or simply heavy usage, it will disappear automatically in a few seconds. So, you don’t need to worry about this case.
In this blog, we will focus on solving the problem that is caused by bad code on your website. The problem will be solved once you find and disable this bad code. Thus, let’s explore the following ways to fix the 503 Service Unavailable Error now!
How to Fix 503 Service Unavailable Error
Deactivating all plugins in WordPress
As you know, all plugins are PHP scripts, so the first thing you need to do is deactivate all of them.
When this error happens, you can’t access or log in to the admin dashboard area. Therefore, connect to your website with an FTP client or File Manager in cPanel. After connecting, you need to go to /wp-content/ folder and rename the plugins into plugins-old.
In the next step, you just need to create a new folder and name it plugins.
Now, go back to your WordPress site and check whether the error has been fixed. If this error is fixed, this means a plugin installed on your site is causing it. Thus, you have to find which plugin causes the issue.
In order to do that, let’s switch back to File Manager or FTP client. Then, you need to access the /wp-content/ folder. Next, simply delete the empty plugin folder. After deleting the folder, rename the plugins-old folder to plugins. This makes all installed plugins available again, but deactivated.
Now, all you need to do is go to the WordPress admin dashboard and access the plugins page. Next, simply activate the plugins one by one, then open the different pages of the website until you find which plugin causes the error.
If this way can’t help you solve this issue, let’s follow the next method.
Switching to a default WordPress theme
If this error is not caused by a plugin, let’s check the theme in use. Now, we will switch to a default WordPress theme. This means you will deactivate the theme you are utilizing.
First of all, connect to your website with an FTP client or File Manager in cPanel. Then, find the /wp-content/themes/ folder. Now, find the WordPress theme that is currently active and download it as a backup.
After that, delete it and use a default theme. Now, let’s check again whether the error is fixed or not.
If neither way solves the problem, why don’t you get in touch with your WordPress hosting company or reinstall WordPress?
Conclusion
To sum up, we hope that today’s blog helps you. If you think it is useful, don’t hesitate to share it with your friends. Furthermore, don’t forget that we are providing a lot of Free WordPress Themes for you to get. Don’t miss them!



