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.