Apache config error?

Question

Apache HTTP Server

I'm trying to raise my cloud according to the article: https://geektimes.ru/post/294997
It seems that at the last stage of restarting Apache, it stops starting, the apache2ctl configtest utility says the following:

apache2ctl configtest
apache2: Syntax error on line 219 of /etc/apache2/apache2.conf: Syntax error on line 15 of /etc/apache2/sites-enabled/nextcloud.conf: </VirtualHost> without matching <VirtualHost> section
Action 'configtest' failed.
The Apache error log may have more information.

Those. there is an error somewhere:

Alias /nextcloud "/var/www/nextcloud/"
<Directory /var/www/nextcloud/>
Options +FollowSymlinks
AllowOverride All
<IfModule mod_dav.c>
Dav off
</IfModule>
SetEnv HOME /var/www/nextcloud
SetEnv HTTP_HOME /var/www/nextcloud
</Directory>
<VirtualHost *:443>
ServerName <span style="color: #ff0000;">ваш_домен</span>
<IfModule mod_headers.c>
Header always set Strict-Transport-Security "max-age=15552000; includeSubDomains"</IfModule>
</VirtualHost>

I myself understand this a little more than nothing; I contacted the author - to which the answer was "I'm in China, here the Civil Code does not open, everything should work."
Can you tell me what needs to be corrected and where?

Answer 1

he asked, he answered:

Alias /nextcloud "/var/www/nextcloud/"
<Directory /var/www/nextcloud/>
Options +FollowSymlinks
AllowOverride All
<IfModule mod_dav.c>
Dav off
</IfModule>
SetEnv HOME /var/www/nextcloud
SetEnv HTTP_HOME /var/www/nextcloud
</Directory>
<VirtualHost *:443>
ServerName www.mysite.com
</VirtualHost>
<IfModule mod_headers.c>
Header always set Strict-Transport-Security "max-age=15552000; includeSubDomains"
</IfModule>

Answer 2

Replace
<span style="color: #ff0000;">ваш_домен</span> with serverName

Answer 3

The ServerName directive cannot contain any garbage other than the domain name.
For example: ServerName www.nichego.net