Error message: Not a valid JSON response

Hi,
Please make a test, this situation may happen on default themes too (if you want to can make a test), therefore, if is so, ten is not a problem related to our theme and it is a general problem.
There are more situations when you can get that error message when you try to save & update the post, most of theme and how to fix them can be find in this article -> https://docs.wpstackable.com/article/393-updating-failed-the-response-is-not-a-valid-json-response-error
I hope this will help you!

Hello,

I’m glad that you solve the issue.

Have a wonderful day!

Hi,

Please check the articles
-> https://docs.wpstackable.com/article/393-updating-failed-the-response-is-not-a-valid-json-response-error
-> https://passionwp.com/response-is-not-a-valid-json-response-error/#:~:text=The%20error%20%E2%80%9CUpdating%20failed. and try the steps.

Thank you!