An operation in Plesk fails: Unable to lookup SID for name

Symptoms

• An operation in Plesk fails with the error message:

  PLESK_ERROR: Unable to lookup SID for name IUSR_example.com: (1332) No mapping between account names and security IDs was done.(Error code 1)

• A Plesk backup task fails with the error message:

  PLESK_ERROR: Unable to back up files from C:\Inetpub\vhosts\example.com owned by system user. Error: Failed to create archive: Unknown error

• Migration finishes with the following warning:

  PLESK_WARN: Can not deploy web-content of domain example.comWarning:ForeignMigratorCore.MigratorException: System.Exception: Get flags failed of user (IUSR_example.com): (2221) The user name could not be found.

• When changing permissions in Plesk File Manager, the operation fails with the following error message:

  PLESK_ERROR: PleskUtilException
  filemng failed: The user name could not be found. (Error code 2221) at NetUserGetInfo((null), john) at (UserInformation::getUserInformation line 187) at getUserInformation(john)(UserInformation::getUserInformation line 193) at execute "D:\Program Files (x86)\Parallels\Plesk\admin\bin\filemng" john --permissions --list-common "--file=D:\Web\vhosts\example.com\httpdocs\wordpress\wp-content" "--accounts=fsgF93A.tmp"(RunTime::RunAsUser::run line 223) (Error code 1)

Cause

The user mentioned in the error message does not exist in the local system.

Resolution

1. Connect to the server via RDP.

2. Start a command prompt as an Administrator.

3. Run the following commands to fix all domains:

   C:\> "%plesk_cli%/repair" --repair-all-webspaces-system-users

   C:\> "%plesk_cli%/repair" --regenerate-web-server-users-password

   C:\> "%plesk_dir%\bin\repair.exe" --repair-all-webspaces-security

   C:\> "%plesk_cli%/repair" --synchronize-impersonation-storage

• • If one or several domains are affected, use the following commands:

    C:\> "%plesk_cli%/repair" --repair-webspace-system-users -webspace-name example.com

    C:\> "%plesk_cli%/repair" --repair-webspace-security -webspace-name example.com
    

    C:\> "%plesk_cli%/repair" --synchronize-impersonation-storage