I just created an account and tried to log in. I thought there was a browser issue because the button was non responsive. I checked the network request and found out the reason. Maybe this reason should be displayed as an error when login fails for users to understand what they need to do.
You know there are multiple reasons why a login could fail? My post was about displaying the reason to the user. Sharing what my issue was isn’t going to help you.
I also mentioned how you can find out. Check the network request and look at the response. You can do this in your browser, for example, with Firefox - https://firefox-source-docs.mozilla.org/devtools-user/network_monitor/