I have the same problem. The site is not cached but nothing works. On the window appears. Settings do not work. I have a plug-in advanced-custom-fields-pro. If you disable it, the settings will be, but the window will not appear.
I’m walking +3 hours from UTC, maybe the reason is this.
At me tazhe problema. The problem appeared after the last exposure, on the previous version it was not. The codes do not match.
I also get the error 401. All checked. All set up correctly. I would be grateful for help.
