Hello, I have had a wallet crash and wallet will not boot!
My backup doesn't have full balance, coins are missing.
Is there anyone that can help me?

A fatal error occured. Stronghands can no longer continue safely and will quit.
EXCEPTION: St13runtime_error
CWallet:GetCredit():value out of range
C:\Users\diehard\Downloads\stronghands-v0141\stronghands-v0141.exe in
Runaway exception
This is because you have tried to send more then 1 billion SHND. You are rich man.

Only rich people have this issue.
The solution is to find theSHND database and delete all files excepting wallet.dat and Stronghands.conf - if exist.
DO NOT DELETE wallet.dat.
You can find SHND database in windows, here :
Windows
Go to Start -> Run (or press WinKey+R) and run this:
%APPDATA%\Stronghands
After delete files as I said, open the wallet QT and syncronize the wallet. I just syncronise my wallet from scrap and it take about two days.
Coins are safe....this is the good news
Good luck!
P.S. Why did you keep the SHND QT in downloads file ? Move it now to desktop.