Git Browse Repository page shows perl code

Hello,

I am trying to install Git and followed all commands. Git, gitweb and the Virtualmin plugin are installed. I created a Git repository, but when I use the button Browse Repository it shows me perl code instead of a human readable page.

#!/usr/bin/perl
 
# gitweb - simple web interface to track changes in git repositories
#
# (C) 2005, Kay Sievers <kay.sievers@vrfy.org>
# (C) 2005, Christian Gierke <ch@gierke.de>
#
# This program is licensed under the GPLv2
 
use strict;
use warnings;
use CGI qw(:standard :escapeHTML -nosticky);
use CGI::Util qw(unescape);
use CGI::Carp qw(fatalsToBrowser);
use Encode;
use Fcntl ':mode';
use File::Temp qw(tempfile);
binmode STDOUT, ':utf8';
 
my $cgi = new CGI;
my $version =       "264";
my $my_url =        $cgi->url();
my $my_uri =        $cgi->url(-absolute => 1);
my $rss_link =      "";
 
and more...

How can I fix this? Thanks in advance!