"The application has the Runtime to terminate it in an unusual way.
Please contact the applicaion's support team for more information."
I have had this a several times now with the new wallet software.
My wallet became corrupt after a windows hard reset.
I solved it this way:
Save your wallet from the appdata\roaming map en delete this wallet.
Restart the XMG wallet software, if no problem it was your wallet.
Then try to find an older version your wallet and use this one.
The wallet will be updated correctly.
ALWAYS SAVE YOUR WALLET BEFORE DOING ANYTHING, PLEASE!