Mac OS 'Sign In' button

After downloading the ’ macOS Virtual files 12+ version’ I can see a shared folder for my next cloud server in finder but after clicking the sign in button in the top right I get a blank screen where I image a login screen would typically appear. If anyone knows a solution or has any information to help that would be amazing.

Machine: M1 Mac Pro macOS Sonoma V14.5.

What is the url in the browser?
If you manually put the address of your Nextcloud, you see the login and you can login?