Was there a swap? 

Maybe I'm dumb or just lost in the thought process.  Back in late November 2017, I originally downloaded the wallet from the original ANN (https://github.com/madcoin-project/madcoin/files/1338744/madcoin-0.8.7.4-win32-setup.zip)

Once I joined the discord and updated my wallet, it give me an error: Warning! error reading wallet.dat. All keys read correctly, but transaction data or address book data may be missing or incorrect.


Any help would be appreciated. 

Thank you