Scene not working

My computer crashed and when I went back onto unity to keep working on my project, my scene wouldn't load. in the console, it would say something like the serialized version number on the scene is higher than what this version of unity supports. I looked it up for a while and someone said than in a day it was fixed. I still reimported all assets and redownloaded unity but it did nothing. Now its been 3 days and it doesn't have the error any more but the scene wont load and when I try to merge it to the current scene that has nothing on it, nothing happens. It successfully merged but nothing happened. I know the scene hasent corrupted or gotten deleted with nothing on it, because when I open and look through it in sourceGear diffMerge, everything is still there.