Перестал работать apache2

cat /etc/apache2/ports.conf

# If you just change the port or add more ports here, you will likely also
# have to change the VirtualHost statement in
# /etc/apache2/sites-enabled/000-default.conf
 
Listen 80
 
<IfModule ssl_module>
    Listen 443
</IfModule>
 
<IfModule mod_gnutls.c>
    Listen 443
</IfModule>
 
# vim: syntax=apache ts=4 sw=4 sts=4 sr noet

sudo ваш рекстовый редактор /etc/apache2/ports.conf

* Restarting web server apache2                                        [fail] 
 * The apache2 configtest failed.
Output of config test was:
AH00526: Syntax error on line 19 of /etc/apache2/mods-enabled/alias.conf:
Invalid command 'Require', perhaps misspelled or defined by a module not included in the server configuration
Action 'configtest' failed.
The Apache error log may have more information.

<IfModule alias_module>
    # Aliases: Add here as many aliases as you need (with no limit). The format is
    # Alias fakename realname
    #
    # Note that if you include a trailing / on fakename then the server will
    # require it to be present in the URL.  So "/icons" isn't aliased in this
    # example, only "/icons/".  If the fakename is slash-terminated, then the
    # realname must also be slash terminated, and if the fakename omits the
    # trailing slash, the realname must also omit it.
    #
    # We include the /icons/ alias for FancyIndexed directory listings.  If
    # you do not use FancyIndexing, you may comment this out.
 
    Alias /icons/ "/usr/share/apache2/icons/"
 
    <Directory "/usr/share/apache2/icons">
        Options FollowSymlinks
        AllowOverride None
        Require all granted
    </Directory>
 
</IfModule>
 
# vim: syntax=apache ts=4 sw=4 sts=4 sr noet

<FilesMatch ".+\.ph(p[345]?|t|tml)$">
    SetHandler application/x-httpd-php
</FilesMatch>
<FilesMatch ".+\.phps$">
    SetHandler application/x-httpd-php-source
    # Deny access to raw php sources by default
    # To re-enable it's recommended to enable access to the files
    # only in specific virtual host or directory
    Require all denied
</FilesMatch>
# Deny access to files without filename (e.g. '.php')
<FilesMatch "^\.ph(p[345]?|t|tml|ps)$">
    Require all denied
</FilesMatch>
 
# Running PHP scripts in user directories is disabled by default
# 
# To re-enable PHP in user directories comment the following lines
# (from <IfModule ...> to </IfModule>.) Do NOT set it to On as it
# prevents .htaccess files from disabling it.
<IfModule mod_userdir.c>
    <Directory /home/*/public_html>
        php_admin_flag engine Off
    </Directory>
</IfModule>