The HTTP 415 Error in WordPress can be a frustrating issue to deal with, but thankfully it is relatively easy to fix. The first step is to identify what might be causing the error. Potential causes can include plugins or themes that are not compatible with the version of WordPress you are running, incorrect web server configuration settings, or incorrect file permissions on your server.

Once you have identified the potential cause of the issue, the next step will be to take corrective action. If plugins and/or themes are causing the issue, then you should try replacing them with ones known to work with your version of WordPress. You could also deactivate all plugins and themes one by one until you find which one is causing the problem. 

If incorrect web server configuration settings are responsible for triggering the error, then you may need to consult with your hosting provider for assistance in adjusting them as needed. This may involve making changes to PHP directives such as post_max_size and upload_max_filesize in order for them to match your needs more closely. 

Finally, if file permissions on your server are at fault, then this requires changing their read and write values using an FTP client or File Manager from within cPanel – both available through most hosting providers’ control panels. When setting file permissions, it is important to make sure that they do not exceed 755 (for directories) and 644 (for files). Anything higher than these numbers can cause issues when attempting to access files on your site via a web browser. 

By following these steps, you should be able to quickly resolve any issues associated with the HTTP 415 Error in WordPress. It’s important not only to identify what might be causing this problem but also to take corrective action accordingly in order to help ensure that your website remains functional at all times.

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