As long as you are making use of ELECTRUM, you don't get the current value of sent or received bitcoins the value you find there in fiat is the Value of those coins as at the time they were sent or received. With that being said, the NO DATA you are seeing is an error probably from your end. To fix that you need to check out your internet connection.

I've experienced the same problem sometimes when internet connection is quite bad . That no data message simply means that your wallet has no fully and successfully synced to the Blockchain and as a result you are not getting the most recent data associated with your wallet.