Why doesn't show photos copied from local storage?

Hi @j-ed,
Thanks for your helping.
I tried:

/usr/local/bin/php /usr/local/www/nextcloud/occ file:scan --all

The result is:

The process control (PCNTL) extensions are required in case you want to interrupt long running commands - see PHP: PCNTL - Manual
Your data directory is readable by other users
Please change the permissions to 0770 so that the directory cannot be listed by other users.

An unhandled exception has been thrown:
Exception: Environment not properly prepared. in /usr/local/www/nextcloud/lib/private/Console/Application.php:166
Stack trace:
#0 /usr/local/www/nextcloud/console.php(96): OC\Console\Application->loadCommands(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#1 /usr/local/www/nextcloud/occ(11): require_once(ā€˜/usr/local/www/ā€¦ā€™)
#2 {main}

Iā€™m not sure which directory should I change the permissions.