Okay, so you got the annoying “response is not a valid JSON response” error message and are unable to upload pictures or images in your WordPress blog or website? Here are the solutions:
- Check for Conflicting plugins. You can do this by troubleshooting, deactivating then re-activating all plugins one at a time to determine if a conflicting plugin is the culprit.
- Check your AMP settings: You might have just deactivated your Google AMP plugin because of the so many issues it presents. If that is the case, ensure that the AMP settings in your theme settings to redirect mobile users to AMP is still turned on. I guess the reason for this is so as not to mess up existing links which is also a culprit.
- Last but not the least, check your permalink settings. Ensure it wasn’t changed from where it previously was. For best practice, the permalink structure should be set at Month and Name, that is; year/month/post-name.
Hope the solutions above were able to solve the problem of “response is not a valid JSON response” and you are now able to upload your images, pictures, and media and also use your WordPress blog or website normally.