XenMobile: 500 Server Internal Error (exid:16200BC6AC0-503E3024D00ABC1E4C352FFA2DAD6AC0) when we click on Manage > User

When you click Users tab on XenMobile server receiving error - 500 Server Internal Error exid:16200BC6AC0-503E3024D00ABC1E4C352FFA2DAD6AC0...