Site not connecting

I was wondering if someone here could help me with an issue i’m having.

I have a site for a client. Their site went down and I’m getting a 500 error. I rebooted the sever, and tunnelled in no problem, but i’m not able to get the site back online.

I’m not sure where to start, hoping some one here can help me.

What did you find in the domain logs?

/var/www/domain.com/logs