Some or all identity references could not be translated.
Reason:
You will get this error, when you migrate your server domain from one to another. Coz, your farm administrator domain also will be changed.
Solution:
1. Go to command prompt.
2. Navigate to STSADM tool folder.
3. type the below command
stsadm.exe -o updatefarmcredentials -userlogin "NewDomain\Admin" -password "Password"
4. Reset the IIS.
Thats it...
