WORDPRESS REPAIR · WP-REPAIR-11

Updating Failed: The Response Is Not a Valid JSON Response

The WordPress editor reports “Updating failed” or “Publishing failed” because the response is not valid JSON.

Category: WordPress Repairs

What’s happening

The WordPress editor reports “Updating failed” or “Publishing failed” because the response is not valid JSON.

The message on the screen is only the visible part of the problem. I’ll look at WordPress, your hosting, and the pieces around them to find where it is actually failing.

You may have already tried

  • Saving again
  • Changing permalinks
  • Clearing cache
  • Disabling the block editor

Those are sensible things to try, and they may give us clues. Once the quick fixes do not work, though, making more changes at random can make the original problem harder to find. I’ll work from the evidence and check the site before changing anything.

What might be going on

  • REST API requests return an HTML error or redirect
  • Site URL/HTTPS mismatch
  • Security rules block the request
  • Permalink or rewrite problems
  • A plugin or server produces warnings in the response

These are common possibilities, not a diagnosis. Several different problems can look exactly the same from the front of the site.

What I’ll check

  • Site and WordPress URLs
  • REST API response and status
  • HTTPS/redirect behavior
  • Permalinks and server rewrites
  • Security, plugin, and PHP errors

I’ll begin with the least disruptive checks and work outward. If I can repair the problem within this service, I’ll test it again before I finish.

What this repair includes

The standard $149 repair covers:

  • One clearly defined problem
  • Diagnosis and up to 90 minutes of repair work
  • A backup or backup check before changes, when one is reasonably available
  • Testing the part of the site that was not working
  • A short explanation of what I found and what I changed

If I discover that the problem needs more time or a different kind of work, I’ll stop and talk with you before doing anything outside the $149 repair. There are no surprise charges.

What this repair doesn’t cover

Rebuilding custom API code or replacing a broken third-party integration is outside the standard repair.

It also does not cover malware or hacked-site cleanup, blacklist removal, major database rebuilding, a full website move, new custom code, payment disputes, or work on a site you are not authorized to manage.

What I will need from you

Most repairs require hosting access because it gives me the tools I need to diagnose and repair the problem. After I review and accept the repair, we’ll arrange a short call and get me into your hosting account.

My 1. 2. 3. process ...

  1. You use the intake form to tell me about the error, what has already been tried, and provide any screenshots that you think might be helpful. No payment is required.
  2. I will review the problem and we will arrange a short phone call.  Once the repair is accepted and I have your permission to work on the site then you make the payment and I begin working on making your headache go away!
  3. When I’m finished, I’ll send you a short report explaining this repair. I’ll also remind you to change any passwords you shared with me.

Request this repair

Please describe exactly what is going on with your site.

Do not include any passwords.

No payment is required at this time!

Frequently asked questions

Usually not. WordPress expected a normal response and received an error page, redirect, security block, or other unexpected response instead.

Sometimes it refreshes the rules, but it can also hide the real problem for a while. I will check the response WordPress is receiving before relying on that fix.

Not every problem can be completely fixed within this service. Sometimes the final solution belongs with the hosting company, an outside provider, abandoned software, or custom code. I will still diagnose what is happening, work to repair the problem, and explain the next steps for anything that is beyond what I can do about the issue.

Price and payment

Standard repair — $149

Purchase Note: Please pay only after we complete the intake process.