Daily Reward Package is a special offer that allows you to claim rewards each day for 2 weeks.
You can check the full schedule of daily rewards by clicking "Schedule" button in the description of the Special Offer.
After you claim a reward for the current day, a timer in the upper right corner of the screen will indicate when you can claim the next reward, like on this example:
Sometimes, the button "Claim" becomes available sooner than the timer allows to actually claim a reward. In this case, a player may receive the following error:
If you can't claim the reward now and receive such pop-up, please double check the timer and wait until it shows that the reward for the next day can be claimed.
Do not worry, you will receive that reward, just a little bit later.