Digi card error

The other day while i was finishing my shift answering all the answers for digi card to eject i turned off the engine and prob gave some sort of power surge to the tacho.
anyhow card ejected but it didnt seem to download fully to the card as my name was still showing on the tacho screen and a couple of the bars showing
the ones where it does the countdown and when all the little bars disappear the card ejects
what will that show on the card now if downloaded by vosa ?
also when you do a print out and it shows a few reg numbers of trucks u have driven and exclamation marks beside it what do the little symbols mean ?