Server throw exception: SecLib::CrmCheckPrivilege failed. Returned hr = -2147220960 on

Hi,
Sometimes i get error messages on server side:

<error>
   <code>0x80040220</code<
   <description>
    SecLib::CrmCheckPrivilege failed. Returned hr = -2147220960 on UserId: 59d6a36f-641d-e011-a5f3-00215aec973e and PrivilegeId: 4533fc7e-76d3-44cf-8f6e-74e1efe84c51
   </description<
   <type>Platform</type>
  </error>

The reason of this message is missing Privilege to make the action.
The solution is:

1. Run sql query:
Select domainname from systemuser where systemuserid ='{UserId}'
 this sql return for which user missing role for CRUD entity

2.
 SELECT     * FROM         PrivilegeBase WHERE    PrincipalId = '{GuidFromErrorMessage}'
return the action that the user failed to do.
now the next step is to change role permission/privilege.

open CRM 4/2011 select user - > role -> search the entity and define the missing permission

Thanks,
Rami Heleg.
aa