You are likely to run into this error after renaming a server with:
stsadm -o renameserver
Or changing the name of your domain, or the domain your server is a member of.
It’s generally because you didn’t follow the appropriate order-of-operations for the change, but just the same, it can be rather tedious to isolate the correct fix.
The first thing you should confirm is that you’ve fixed your Alternate Access Mappings. If you can’t get to central administration, you can do this via the STSADM tool.
Next, ensure that your farm account is accurate, especially if a domain changed:
Do this using the STSADM update farm credentials command:
stsadm.exe -o updatefarmcredentials -userlogin domainusername -password password
Then do an IISRESET.