Error: should only be one vhost in /etc/apache2

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12

I’ve got the same problem…

my file:

<VirtualHost *:80>
    ServerAdmin example@example.com
    DocumentRoot /var/www/1/
    ServerName example.com
    ErrorLog ${APACHE_LOG_DIR}/error.log
    CustomLog ${APACHE_LOG_DIR}/access.log combined
</VirtualHost>

error:

Error: should only be one vhost in
/etc/apache2/sites-enabled/example.com.conf

any idea what’s wrong?

Command which I run:

./certbot-auto --apache -d example.com

(where example.com is my domain)

I also tried replacing <VirtualHost *:80> with <VirtualHost my-ip:80> or <VirtualHost *:*>