Thanks for the update.
I solved this by backing up
/opt/bitnami/apps/edx/conf/certs/server.key and then adding a symlink to
/home/bitnami/stack/letsencrypt/certificates/g.enskill.app.key in it's place.
But then SSL was not working with edx-studio so I copied the SSL directives from "
<VirtualHost *:443>" and pasted it under "
<VirtualHost *:18010>" and it worked.
Will this be okay or should I try commenting out the line?