Help finding lost files
I wanted to let you know that archive.org has been saving me quite a bit with my lost content. While the Wayback Machine there may not have a version of every page from your site, you may be able to at least copy & paste some of your content by exploring the old captures of your site.
Good luck to you with your rebuild!
It looks like the host had tried to do a fresh install of C5 on the old DB and wiped it out.
We asked the host for a DB back up and files, I downloaded them to my hosting on PHP5.6 and updated the site to C220.127.116.11 before reloading it back on to there servers running php7.3.
It is now all working. More than happy to help anyone else with this situation