This has been bugging me for some time and it seem as though signing in every day does not register to the game server system, I have lost 2 days of sign in cause it never registered even though I play this game every day. So not sure how or why this is happening but its upsetting and disappointing to play a game and get robbed of certain progress, really takes the fun away when it happens.
Did you ever go to the sign in section and claim your rewards? If have not them that is why
yes I have, sign in and claim rewards, every day, but still had errors