Hello! We've just selected the option "Use directory for default language" in Language format settings. Now we can't login to wp-admin anymore and the login page gives 404 error. What to do?
Your following answer will be private, which means only you and I have access to it.
✙ I would need your permission to de-activate and re-activate Plugins and the Theme and to change configurations on the site if required. This is also a reason the backup is critical.