MultiCurrencyWallet - known error messages handling
Known error messages like the exchange FAIR to EUR or BTC should contain a link to more details about the situation. Options that not work, for example a user want request the mastercard but can't because he don't have Euros but FairCoin so this option should be unavailable and if the user click the option then he should get a info that he has not enough Euro and needs to change FairCoin to Euro before. And if he go now to the exchange FairCoin to Euro then it is also unavailable with comment that the Exchange Wallet is empty see more details here ( link to the detailed info )