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Have you ever tried to upload a file or modify a piece of content on your WordPress site and been greeted by a frightening red notification that reads, “Updating failed. The response is not a valid JSON response“? To fix this error: https://rankmath.com/blog/fix-invalid… In this video, we’ll walk you through the various methods to get rid of this WordPress error on your website.
Timestamp:
00:00 Introduction
00:24 What triggers the error?
00:56 Check the URL settings
01:36 Fix WordPress Permalink structure
02:15 Regenerate .htaccess file
“03:15 Check themes and plugins
04:30 Use Classic Editor
05:18 Check Site Health Tool
05:35 Disable Security Firewall
06:15 Use Debugging in WordPress
07:13 Upload files to the Media library