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Sorry to hear you’re facing problems 
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Nextcloud version - latest
Operating System Rocky Linux 8
php version 7.4
apache version httpd-2.4.37-51.module+el8.7.0+1059+126e9251.x86_64
The issue you are facing:
I am trying a fresh nextcloud install.
When running the install procedure, and after entering username and password for admin database user, the process comes back with an error:
Link: https://nextcloud/index.php/core/apps/recommended
We can’t connect to the server at nextcloud. Did you mean to go to www.nextcloud.com/index.php/core/apps/recommended?
I ran this process 5 times over a time span of ~5 hours.
Process stops here.
Is this the first time you’ve seen this error? (Y/N): N
Steps to replicate it:
- Run install script
The output of your Nextcloud log in Admin > Logging:
NA
The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):
NA
The output of your Apache/nginx/system log in /var/log/____:
NA
PASTE HERE
Output errors in nextcloud.log in /var/www/ or as admin user in top right menu, filtering for errors. Use a pastebin service if necessary.
PASTE HERE
Thanks for helping.
Wolfgang