Please update your wallet as soon as you can to V1.2.0.1 . It is a mandatory update. It wont take more than 5 minutes.
Please update the wallet first, you can update masternode at anytime
You can get wallet update instructions at #wallet-update-guide
Note : Deposit/Withdrawal to/from exchanges may get paused from 14th onwards, depending upon the number of people running newer version of wallet.