Getting the same error as well. Looks like my DHCP Server was shut down as the result of installing Hamachi. Windows 2011 SBS. The DHCP server is designed to shut down if it detects another DHCP server, so Hamachi DHCP broadcasts seem to be detected by the local lan adapter. But, after disabling the Hamachi service the DHCP server will still not start. My next step is to reboot. I'll let you know the outcome.
I noticed that no one from Hamachi has given a crap about resonding to your question. They have a great product and with a few tweeks might be my choice for my Enterprise.