As mentioned in another thread, the reason that the game has to scan every day is that the Devs are currently busy fixing bugs and overall patching the game due to the release of the Romans along with most other content. I would suggest waiting till the day before your data resets, and then doing the gamescan - When your data resets the next day you'll have, at most, 1 game scan to do and can thus play until the Devs need to implement a new patch.