Fixed it.

Placed the backup file in the MAO %appdata% folder and all is working again. Money still in the bank! 

I transferred my MAO coins from YoBit to the "official" MAO wallet. Now all coins have magically disappeared, as if my wallet was reset. There is no SEED to get the wallet back. I do have a backup and of course my passcode; how do I load this in the MAO Wallet app?

Help me get my coins back. :-)