I'm owning a VPS and wanted o know if there's a way to acces sub-domains Logs

I actually find my logs at /var/www/vhosts/domain.com/statistics/logs/acces_log

but in /var/www/vhosts/domain.com/subdomains/xxx/ there is no statistics folder, so I don't know where logs are.

Are they all together on the first folder?
In that case, isn't there a way to acces individual sub-domains logs?

Thanks in advance