If you'll let us know what appears to be the issue, we might be able to help you to get back up and running.
In terms of DigitalOcean support, much like other unmanaged providers (Linode, Vultr, etc)...
If the issue is physical -- CPU, RAM, Disk, Network -- DigitalOcean will provide support as the issue is on their end.
If the issue is software -- Firewall, MySQL, PHP, NGINX, Apache, WordPress, etc -- you're responsible for that as the end-user. They may provide best-effort support, but there's no guarantee.
Ultimately, with an unmanaged service, you need to know how to properly administer a server, or be willing to learn by reading the guides here at DigitalOcean or by searching Google. The community is here to help and both myself and @hansen check in pretty much every day to see what we can do, though much like DigitalOcean, we don't have access to your Droplet, so we have to rely on what you give us :-).