Error: no secure shell available plesk

In Plesk 11 you can run the below command to fix it
[bash]
[root@server ~]# /usr/local/psa/bootstrapper/pp11.0.9-bootstrapper/bootstrapper.sh repair
Changing shell for popuser.
Shell not changed.
Changing shell for mhandlers-user.
Shell not changed.
===> Preparing upgrade
Stopping psa… done
psa is stopped
Stopping psa… done
===> Cumulative database upgrade has been started
===> Upgrade completed.
===> Cumulative upgrade has been started
===> Upgrade completed.
Stopping psa… done
Starting xinetd service… done
Starting mysqld service… done
Starting named service… done
Starting postgresql service… not installed
Starting psa-spamassassin service… not installed
Plesk: Starting Mail Server… already started
Starting psa… done
Starting drwebd service… failed

Congratulations!
All stages of the upgrade were successful.
psa is now running on your system.
To complete the system configuration process, please proceed to URL:
https://server.domain.com:8443/ or
https://127.0.0.1:8443/
Use ‘admin’ and ‘<YOUR ADMIN PASSWORD>’ as login name and password.

Further, use the following commands to start and stop the system:
/etc/init.d/psa start and
/etc/init.d/psa stop respectively.

[root@server ~]#
[/bash]

In Plesk 10 you should run
[bash]
/usr/local/psa/bootstrapper/pp10.10.1-bootstrapper/bootstrapper.sh repair
[/bash]