There was an error, The response is not a valid JSON response

Timwillemss

Hi,

When opening the widgets, I have a big error showing "The "custom_html" block was affected by errors and may not function properly. Check the developer tools for more details."

And when removing all the items in the widgets, it won't let me save with the error: There was an error, The response is not a valid JSON response

Phil

Hello,

Please check the following article and follow the tips from there.

https://webspeedtools.com/fix-the-response-is-not-a-valid-json-response-wordpress/

If none of them will help, please contact your hosting provider and ask to allow all the rules that ModSecurity blocks incorrectly.

Thanks

Learn more: Video Tutorials | How To | FAQ Vote on what comes next