Looks like this is double posted, and the other thread is more thorough. Suggest this thread to be closed.

Well, I am gonna post the guide here in public so anyone can object, but instead of writing guides for every OS it is less time consuming to know which OS the user is currently using. Yes, I am a newbie in this forum, but if that means I shouldn't contribute then I'll keep my mouth shut and let the legends speak. Cheers.

I see. Is it okay if I guide you through some steps that require the use of Linux/UNIX? I wonder if it is possible to reconstruct the wallet, but in order to do so we need to check what contents of the wallet that is damaged. Just let me know which OS you're comfortable with and I'll try to summarize a guide.

Did you find any other files related to the MultiBit installation? Like .key-files or anything else, or just the .wallet-file?

Did you by any chance solve this problem?

Sure, there's been lots of issues with old Multibit wallets so there are more options to try if this doesn't work out. Hope it helps though:)

Have you tried running the script above? If it doesn't work, one of the forum members here (HCP) has made a script that might help you. Check out this thread and let me know how it turns out: https://bitcointalk.org/index.php?topic=1942459.msg19300634#msg19300634

+1 to that. If you indeed have a file named multibit-<datestamp>.key in the Multibit-folder, it might be possible to obtain the private keys, but as Oshosondy said: do not hand over anything to others. Instead, let users here guide you through the process (in public, not by PM), or try this tool on your corrupted wallet to see if the script is able to read more data than the Multibit application: https://github.com/Multibit-Legacy/read-multibit-wallet-file

Is it Multibit Classic or HD? Do you still have the key(s) located in MultiBit-folder? If so, I'll write you a description on how to do it here.