Some causes of this error in general for any web browser. | Misconfigured WordPress settings/plugins Issues with browser’s cache/cookies. Issues with third-party services Bad HTTPS settings Bad server settings |
I have this address as a bookmark, from where I can log into the forum. The problem described by the OP, I have had regularly since at least the summer of 2021. In Edge, Chrome and Firefox, despite clearing cookies on exit, and daily clearing all temp files.