I have just moved my WordPress site to be hosted here, but I was unable to access the edit function in Chrome, but it was available in Firefox. I found an answer and am not sure how to pass the good news because Tech Support told me it was a change in Chrome, and others were having the same problem.
The error message was: Not Acceptable
An appropriate representation of the requested resource /server/wp-admin/ could not be found on this server.
Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.

The answer is quite simple! Uninstall Chrome and then try to delete all files on the folder C:\Users\[username]\AppData\Local\Google\Chrome , then reinstall it.

This works! And it should stop some of the plugin crashes I've been experiencing.

Hope this is helpful to someone.