Permissions corrupted.

System

Hi,

We are facing permission related problem in teamsite 5.5.2 on windows. All of a sudden the user groups that are assigned to directories in teamsite are being displayed as numbers instead of group names. And users are not able to edit any file in the directory as it throws the error 'Not permitted to edit in the workarea'.

Please suggest. it is happening on prod machine. We have user groups and accounts in Active direcotry and they are found to be fine.

thanks