This feature sort order option is only available in the categories option.
In the folder option, this feature is not available we will try it in the future.
Are you able to log in to dev mode?
If not, please make a try the below methods:
Check your read/write permissions enable or not in the .env file
In the last cache clear of your project with this command:
php bin/console c:c
and try again.
Please let us know which version of uvdesk opensource and the PHP version you are using?
Actually, you entered the wrong URL in your browser.
Open http://localhost/uvdesk/uvdesk-community-v1.0.18/public in your browser.
Follow our user guide from here to set up an installation wizard
and also here
I Hope, you are able to open the setup wizard.
If you still facing any issue or confusion, please let us know.