Troubleshooting Plesk VPS

I have got an VPS with multiple domains, for some reason non on the domains are accesible anymore. I think the root cause is within the Plesk installation. (I see log files which mention 'psa database not found')

I am looking for a Plesk administator with knowlegde of CentOS 7, I can give you SSH root acces to fix this problem.

Please mention the your hourly rate and the expected amount of hours you'll need. (These numbers will add up to the first milestone)