I think there is no way to fix it, but I'm not expert
You could say something more about Your map file. Which editor were You using on this map? What did You do before the last saving?
Maybe You cannot recover this file, but You will know what You should NOT do next time.
BTW. Why don't You have backup? WTF, mate? You work on map 1.5year and You don't do backup?! I wouldn't sleep without it. OMG...
I Have a backup but is like 13 days back.So i Can continue from thre but is 13 days of 10 hours working in the map per day.So if everything is lost i think that i am done with this project
I do know this - xenforo dropped the ball by not keeping the vbulletin reputation comments as a feature. The loss of the Reputation comments data when we switched to Xenforo really was the death knell for the site when it came to all the users that left. I know I missed it so much and I got way less interested in the site when that feature was gone and I run the site.