Oh sorry to hear you have had problems. Our current osvr demo has had us fix a lot of new errors after many crashes.
We certainly feel for you.
For future information we put a system in place for what you are going through, may not help you much now as you have re-installed but good to know for future reference. All micro scripts generate a back up file in the Data folder:
Skyline_SDK\Skyline\Data\_BackupNext time you get a crassh and think you have lost the scene code check in this folder and look for the object name and date to locate the script.
Also you scenes may not be lost if you still have the scene file we may be able to get it working again for you. It's always worth a try especially if you have lost lots of work.
If it has a terrain just add the scene folder to the resources and this should fix it.