Hi,
health check plugin was a good keyword (I was unaware about it, quite new to WordPress/web design.)
So I installed it and it and it showed:
“The REST API did not process the context query parameter correctly.”
Googling this brought me there.
If I install the Classic Editor I can post and edit all day long.
This doesn’t solve the actual problem but will do for me now, so thanks!
Btw. while googling around I found more people seem having this issue:
https://wordpress.org/support/topic/updating-failed-error-message-the-response-is-not-a-valid-json-response-2/
I have the same problem. The settings page looks exactly like in the screenshot the poster above provided and not like the screenshots the developer provided, buttons also don’t work at all.
Help please.
