Received the following error on a server when logging in: "The security database on the server does not have a computer account for this workstation trust relationship."

We lost our network admin and I was "volunteered" into the position (I have some admin experience, but this is a small company so for now I'm the guy).  Of course the first week we have a drive fail on one of our DEV servers and no backup drives available so it's down until the new one arrives. I'm giving that as background in case it matters.

Another server HOST3 had a VM called DemoDB on it. When I try to login to DemoDB I get the following:

"The security database on the server does not have a computer account for this workstation trust relationship."

So I searched that message out and a lot of user say to rejoin the system to the domain. I tried to login locally and I'm getting this message:

"You cannot log on because the logon method you are using is not allowed on this computer. Please see your network administrator for more information."

If I can't login to the station and it is not listed on ADUC then what are my options? 

Thanks for any assistance.