That's why they say, read between the lines

We had a CRM organization up and running for days (we are on Dynamics CRM 2013) and of course it went down. The error was pretty generic:

An error has occurred. Please try again and if it does not work, contact your system administrator.

I clicked on the Try Again button and here is the error detail.

http://CRM_SERVER:5555/_common/error/errorhandler.aspx?B ackUri=&ErrorCode=0x80040216&Parm0=%0d%0a%0d%0aE rror%20Details%3a%20Failed%20to%20get%20priv%20user%20 group%20information.%20k%20%3d%2021a6dcf2-a2d8-4642-9a76-90fce5f1f92a%20privUserGroupId%3a%20d955e0ef-453c-4c63-9cae-a8ac9a28c82f%2c%20localSystemAdGuid%3a%2071ced336-9ba0-49be-9ad7-f6ddb010b085%2c%20Exception%3a%20System.DirectoryS ervices.DirectoryServicesCOMException%20%280x80072030%29% 3a%20There%20is%20no%20such%20object%20on%20the%20 server.%0d%0a%0d%0a%20%20%20at%20System.DirectoryService s.DirectoryEntry.Bind%28Boolean%20throwIfFail%29%0d %0a%20%20%20at%20System.DirectoryServices.Director yEntry.Bind%28%29%0d%0a%20%20%20at%20System.DirectorySer vices.Director yEntry.get_NativeObject%28%29%0d%0a%20%20%20at%20System.DirectoryServices.Director yEntry.Invoke%28String%20methodNae zme%2c%20Object%5b%5d%20args%29%0d%0a%20%20%20at%2 0Microsoft.Crm.SecurityUtils.CheckMembership%28Guid%20princi palId%2c%20Guid%20groupId%29%0d%0a 
%20%20%20at%20Microsoft.Crm.Caching.OrganizationSet tingsCacheLoader.LoadCacheData%28Guidz%20key%2c%20ExecutionContext %20context%29.&RequestUri=%2fdefault.aspx& user_lcid=1033

If you read between the lines, it says : Failed to get priv user group information.......

This is almost always because the CRM Async service is not running. If it is running, then may be due to a restart that the CRM server was up before the AD server.

Solution
Restart all the CRM services and also restart the CRM website on the IIS (for your own satisfaction)

Result
Shoot an email to your management. Cuppa coffee! :)