How to create two sites on the same digitalocean wordpress image droplet?

I created a wordpress droplet, and I have wordpress installed on my website. It is working perfectly. in www/html/ folder. I followed a tutorial in here. https://www.digitalocean.com/community/tutorials/how-to-set-up-apache-virtual-hosts-on-ubuntu-16-04#step-five-—-enable-the-new-virtual-host-files

I created a folder in www. I did all the other things. When I reached to enabling and disabling the default folder. 1: disabling default folder in the sites enabled. the default site still working. 2: enabling my new site. i cannot enable it. 3: i disabled the default, I cannot run the new one.

WHAT i need please help: I have to domains name. for example 1.com and 2.com the 1.com is connected with the wordpress website. it works fine.

I added new file in the sites available and I added everything like the tutorial above. by when I want to enable it I get this error.

Job for apache2.service failed because the control process exited with error code. See “systemctl status apache2.service” and "journalctl -s

How i can connect my new website 2.com to a folder in var/www/html/public_html to my new domain.

information 1: i added site 1.com and 2.com to the same droplet both of them directing to 1.com. 2: hosts file i found my original domain there 1.com. 3: If I enabled the new site I cannot save. and if I disabled the default my site still working. Please help. .