Ubuntuサーバー - パッケージを削除できません。

パッケージを削除できません。

[sudo] password for admin: 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages will be REMOVED:
  webmin
0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded.
1 not fully installed or removed.
After this operation, 173 MB disk space will be freed.
Do you want to continue? [Y/n] y
(Reading database ... 143102 files and directories currently installed.)
Removing webmin (1.900) ...
dpkg: error processing package webmin (--remove):
 cannot remove '/usr/share/webmin/qmailadmin/stop.cgi': Bad message
Errors were encountered while processing:
 webmin
E: Sub-process /usr/bin/dpkg returned an error code (1)

権限を表示すると、以下が表示されます。

ls: cannot access '/usr/share/webmin/qmailadmin/stop.cgi': Bad message
total 16
drwxr-xr-x   2 root root  4096 Jan 29 21:50 .
drwxr-xr-x 111 root root 12288 Jan 29 20:54 ..
-?????????   ? ?    ?        ?            ? stop.cgi

この問題を解決する方法。