i dont know whats wrong

go to the history of your internet browser and clear the cache should give you option of the beginning of time. clear this and restart your pc . try logging in again. important you clear the cache totally.

You are probably playing the game on the Facebook platform through the browser.

You save the Facebook login to browser then bookmark the page. When you open the game with bookmark, the Treat calendar will work properly.

Playing games through the browser is an online platform so we can't say for sure if your treat calendar will always work properly.

For lives issue please check HERE.