apache goes down on command prompt restart; httpd start script issue

[S K Sirajuddin]

After we moved Our servers to 10.4.4 we started facing httpd shut downs on each time we restart from command prompt. whereas able to start from Plesk service manager > starts httpd.

We are now tired with bootstraper repair option , as this only restarts the httpd.
---------snip1---------
[root@ns4 vhosts]# service httpd restart
Stopping httpd: [ OK ]
Starting httpd: [FAILED]
[root@ns4 vhosts]# service httpd restart
Stopping httpd: [FAILED]
Starting httpd: [FAILED]
[root@ns4 vhosts]#
/usr/local/psa/bootstrapper/pp10.13.4-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.
mknod: `/var/www/vhosts/chroot/dev/null': File exists
/usr/local/psa/bootstrapper/pp10.13.4-bootstrapper/bootstrapper.sh:
line 7373: Parse: command not found
===> Cumulative upgrade has been started
===> Upgrade completed.
Stopping psa... done
Starting psa... done
Starting xinetd service... done
Starting named service... done
Starting mysqld service... done
Starting postgresql service... done
Starting psa-spamassassin service... done
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://<DOMAINNAME>:8443/ or
https://<IP>: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@ns4 vhosts]# /etc/init.d/httpd graceful
[root@ns4 vhosts]#
---------snip1--------------

From Plesk panel also we can not able to start httpd after psa stopall , needed bootstarpper.sh repair option.

-----------snip2---------
[root@ns4 ~]# /etc/init.d/httpd status
httpd (pid 21261) is running...
[root@ns4 ~]# /etc/init.d/psa stopall
Stopping psa... done
Plesk: Stopping Mail Server... done
Stopping mailer service... not installed
Stopping postgresql service... done
Stopping psa-spamassassin service... done
Stopping drwebd service... done
Stopping tomcat5 service... not installed
Stopping httpd service... done
[root@ns4 ~]# /etc/init.d/psa start
Starting psa... done
Starting xinetd service... done
Starting named service... done
Starting mysqld service... done
Starting postgresql service... done
Starting psa-spamassassin service... done
Plesk: Starting Mail Server... done
Service /etc/init.d/httpd failed to start
Service /etc/init.d/httpd failed to start
websrvmng: /usr/local/psa/admin/bin/apache_control_adapter execution failed:
Service /etc/init.d/httpd failed to start
Service /etc/init.d/httpd failed to start
websrvmng: /usr/local/psa/admin/bin/apache_control_adapter execution failed:
Service /etc/init.d/httpd failed to start
Service /etc/init.d/httpd failed to start
Starting psa... done
Starting drwebd service... done

-------snip2--------

Than again we needed to run bootstrapper.sh repair to start httpd, as these time even from plesk service manager httpd fail to start.

it seems this is bug as its happening to many of our servers.

Hope some one has permanent solution.