X theme Updating failed. The response is not a valid JSON response

already disabled all plugins … and still getting this response when trying to edit in cornerstone

x theme Updating failed. The response is not a valid JSON response for website josephanderson.co

Hello @j_andersn,

Thanks for writing to us.

It might be the issue of the plugin conflict issue. I would suggest you troubleshoot with a few of the common issues before we investigate your settings.

  1. Testing for Plugin Conflict
  2. CSS/JS Customization
  3. Version Compatibility
  4. Disabling Cache

If it doesn’t work for you, please share your details in a secure note. Please provide the following details

  • WordPress Login URL
  • Admin level username and password

You can find the Secure Note button at the bottom of your posts

Thanks

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