Hello all, I have this error message as soon as I put a text with a link to unsplash.com under an image, in the image description. If I take google.com for example, it works.
Greetings
when you see The response is not a valid JSON response its generally related to the REST API not responding, It may just be a case it had an issue checking that URL at the time.
If it happens again, Right Click -> Inspect the page to open the browser developers tools and check the Console tab for any errors. It may you debug the issue.