Webmin показывает простой скрипт Perl при попытке открыть страницу входа

когда я пытаюсь открыть страницу входа в webmin " https://192.168.1.13:10000 ", отображается простой Perl-скрипт, как показано ниже, в чем проблема? Я использую Ubuntu 18.04 и последнюю версию webmin.

#!/usr/bin/perl

#
# Authentic Theme (https://github.com/authentic-theme/authentic-theme)
# Copyright Ilia Rostovtsev 
# Licensed under MIT (https://github.com/authentic-theme/authentic-theme/blob/master/LICENSE)
#
use strict;

use File::Basename;

our (%in, %gconfig, %tconfig, %text, $config_directory, $current_theme, %theme_text);

do(dirname(__FILE__) . "/authentic-lib.pl");

my %miniserv;
get_miniserv_config(\%miniserv);

my $charset = &get_charset();

# Check to add error handler
error_40x_handler();

our %theme_config = (settings($config_directory . "/$current_theme/settings-admin", 'settings_'),
                     settings($config_directory . "/$current_theme/settings-root",  'settings_'));

# Show pre-login text banner
if ($gconfig{'loginbanner'} &&
    get_env('http_cookie') !~ /banner=1/ &&
    !$in{'logout'}                       &&
    !$in{'failed'}                       &&
    !$in{'timed_out'})
{

    print "Auth-type: auth-required=1\r\n";
    print "Set-Cookie: banner=1; path=/\r\n";
    &PrintHeader($charset);
    print '', "\n";
    print '', "\n";
    embed_login_head();
    print '' . "\n";
    embed_overlay_prebody();
    print
'

'
      . "\n";
    my $url = $in{'page'};
    open(BANNER, $gconfig{'loginbanner'});

    while () {
        s/LOGINURL/$url/g;
        print;
    }

    close(BANNER);
    &footer();
    return;
}

my $sec = lc(get_env('https')) eq 'on' ? "; secure" : "";
my $sidname = $miniserv{'sidname'} || "sid";
print "Auth-type: auth-required=1\r\n";
print "Set-Cookie: banner=0; path=/$sec\r\n"   if ($gconfig{'loginbanner'});
print "Set-Cookie: $sidname=x; path=/$sec\r\n" if ($in{'logout'});
print "Set-Cookie: redirect=1; path=/\r\n";
print "Set-Cookie: testing=1; path=/$sec\r\n";
&PrintHeader($charset);
print '', "\n";
print '', "\n";
embed_login_head();
print '' . "\n";
embed_overlay_prebody();
print '' . "\n";

if (defined($in{'failed'})) {
    if ($in{'twofactor_msg'}) {
        print "
",, "
\n";
        print '' . "\n";
        print ' ' . $theme_text{'login_warning'} .
          '
' . &theme_text('session_twofailed', &html_escape($in{'twofactor_msg'})) . "\n";
        print '' . "\n";
    } else {
        print '' . "\n";
        print ' ' .
          $theme_text{'login_warning'} . '
' . "\n";
        print '' . $theme_text{'theme_xhred_session_failed'} . "\n";
        print '' . "\n";
    }
} elsif ($in{'logout'}) {
    print '' . "\n";
    print ' ' . $theme_text{'login_success'} . '
' . "\n";
    print '' . $theme_text{'session_logout'} . "\n";
    print '' . "\n";
} elsif ($in{'timed_out'}) {
    print '' . "\n";
    print ' ' .
      $theme_text{'login_warning'} . '
' . "\n";
    print '' . &theme_text('session_timed_out', int($in{'timed_out'} / 60)) . "\n";
    print '' . "\n";
}
print "$text{'session_prefix'}\n";
print '' . "\n";

print '
     '
  . (&get_product_name() eq 'webmin' ? $theme_text{'theme_xhred_titles_wm'} :
       $theme_text{'theme_xhred_titles_um'}
  ) .
  '' . "\n";

# Process logo
embed_logo();

# Login message
my $host;
if ($gconfig{'realname'}) {
    $host = &get_display_hostname();
} else {
    $host = get_env('server_name');
    $host =~ s/:\d+//g;
    $host = &html_escape($host);
}
print '' . &theme_text('login_message') . ' ' . $host . '' . "\n";
print '' . "\n";
print '' . "\n";
print
'' . "\n";
print '' . "\n";
print '' . "\n";
print '' . "\n";
print
  '' . "\n";
print '' . "\n";

if ($miniserv{'twofactor_provider'}) {
    print '' . "\n";
    print '' . "\n";
    print
'' . "\n";
    print '' . "\n";
}
if (!$gconfig{'noremember'}) {
    print '
             '
      . $theme_text{'login_save'} . '
         ' . "\n";
}
print '';
print '  ' .
  &theme_text('login_signin') . '' . "\n";

if ($text{'session_postfix'} =~ "href") {
    my $link = get_link($text{'session_postfix'}, 'ugly');

    print '[0] . '", "' . $link->[1] .
'", "toolbar=no,menubar=no,scrollbars=no,resizable=yes,width=700,height=500");return false;\' class="btn btn-warning">  '
      . &theme_text('login_reset')
      . '' . "\n";
}

print '';
print '' . "\n";

&footer();