Recovering from deletion of web files
I have a database that I had set up and until a few days ago, was running fine with Vanilla 2.6.1. I lost all of the web files and I need to reinstall them, but I want to keep the existing database. I tried installing Vanilla 2.6.3 via the normal install-from-scratch method but using the same database, and I could see the categories, topics and posts (minus images)... mostly okay... but things are somewhat messed up. The Colors plugin theme switching no longer works, the mobile Colors theme are ALL selected simultaneously on the Mobile Themes page, the branding icons were missing, post images are gone, user account images are gone, etc. I get a weird error box when I try to fix the user account images but even though it seems like it failed, it actually worked (but this weird error box comes up every time I try to change the user account image).
Am I out of luck? Should I try a different way to resolve this?