apache2-perl-startup.pl not starting

[nrdoss]

Hi,
Now we installing OTRS 3.0.11 and customizing the skins for our own.
The application working fine.
In that Overview: Support Assessment in System Administration column, we found the below
Check for CGI Accelerator.
You should use FastCGI or mod_perl to increase your performance.

- How would i use the mod_perl or FastCGI in our application.

Now i am Run the apache2-perl-startup.pl script and i got the below error.- How to resolve and fix this,

[root@one scripts]# ./apache2-perl-startup.pl
[Wed Mar 14 10:15:54 2012] apache2-perl-startup.pl: Use of uninitialized value $ENV{"MOD_PERL"} in pattern match (m//) at ./apache2-perl-startup.pl line 28.
Status: 500
Content-type: text/html

<h1>Software error:</h1>
<pre>MOD_PERL not used! at ./apache2-perl-startup.pl line 28.
</pre>
<p>
For help, please send mail to this site's webmaster, giving this error message
and the time and date of the error.

</p>
[Wed Mar 14 10:15:54 2012] apache2-perl-startup.pl: MOD_PERL not used! at ./apache2-perl-startup.pl line 28.

i check the loaded modules in php page: mod_perl is loaded

Loaded Modules : core prefork http_core mod_so mod_auth_basic mod_auth_digest mod_authn_file mod_authn_alias mod_authn_anon mod_authn_dbm mod_authn_default mod_authz_host mod_authz_user mod_authz_owner mod_authz_groupfile mod_authz_dbm mod_authz_default util_ldap mod_authnz_ldap mod_include mod_log_config mod_logio mod_env mod_ext_filter mod_mime_magic mod_expires mod_deflate mod_headers mod_usertrack mod_setenvif mod_mime mod_dav mod_status mod_autoindex mod_info mod_dav_fs mod_vhost_alias mod_negotiation mod_dir mod_actions mod_speling mod_userdir mod_alias mod_rewrite mod_proxy mod_proxy_balancer mod_proxy_ftp mod_proxy_http mod_proxy_connect mod_cache mod_suexec mod_disk_cache mod_cgi mod_version mod_perl mod_php5 mod_ssl mod_wsgi

Assist which config i missed out.

Thanks,
Regards,
Ramdoss.