Server Webmin Virtualmin Install Sripts and ssl

Hi, we have a root server with ssh and need to install 1. rocket chat 2 .Nextcloud 3. Odoo all to subdomains and all ssl protected by lets encrypt. Our server admin said he installed every script but he does not fix the SSL. If you need to reinstall all scripts Odoo has to be backuped and restored, rest scripts have never been used and can be installed new without backup requirement Please also install automatic backups on the same server or if possible to another server of ours THis is an urgent job, please tell us how many hours you will need and how quick you can do the job.