@alexcherry please confirm migration procedure to https is still valid
https://ispframework.freshdesk.com/support/solutions/articles/16000032878-splynx-and-ssl-https-
I noticed there’s no /etc/nginx/sites-enabled folder. Also in ssl_certificate /etc/ssl/certs/ssl-cert-snakeoil.pem I have an crt file instead of pem
i can confirm 
yes,…
but in you case you have apache2 installed (not splynx)
and this is not good for future, we will delete apache support from splynx, so for now i recommended
to delete apache2 and install nginx (and make dpkg-reconfigure splynx) to receive configs
about .crt or pem files, you still need to order SSL cert and use it.
Who did that? I used the wiki to install. 
Oh no! Kindly elaborate further. My system is live and in use.
Already have nginx installed.
Chris, please send us ticket with access to your server, we will check the settings
Ok. Opening ticket.