As for the installation, I know, this bit kind of sucks, sorry :( How long ago did you last install/upgrade? My co-founder is working pretty much full time on improving the ease of installation and configuration. One of the difficulties is that we use a lot of small services, which is great for large scale deployment, but a bit of a nightmare for producing a single standalone installable service with a unified config system. We're getting there though, and it's a priority at the moment. If you've got any feedback or problems you hit, please reach out at team@sharelatex.com. Thanks!