Staging site lost all my content coincident with WP upgrade to 6.2

My staging site no longer exists, unless it got backed upsomewhere I’m not aware of when upgrade to 6.2 occurred. Hosted with Bluehost on multi-site plan. Staging site URL is hereonthe.net/staging/9611. Trying to open that now bring up “Hello World” page.

Probably is consistent across all major browsers.

Code Guard backups don’t go back but a few days, strangely, as I’ve been working on the site for over a month.

Prior to this problem, I’ve routinely deployed the staging site as I’ve made incremental progress; all went fine.

Bluehost tech support has no answer. They’ve asked me to go looking through the file manager and look for problems. They are also running a scan looking for corrupted files. I feel that’s just a shot in the dark.

At this point I just want my staging site files back. I’m hesitant to deploy to see what happens for concern it will destroy the live site.