What game level are you on?....you need to be at least on game level 35 to be able to activate "Alice In Wonderland".
Please provide a screenshot of your main camp & map menu tab.
Have you tried clearing your cache, cookies, history, etc?
Is your game app up-to-date?
Have you tried completely shutting down & restarting your game?....fully closing down not just swiping it into the background.
If you have your player ID number & game progress registered with either your email address or Facebook account.....then you could try uninstalling and reinstalling your game.
If none of these suggestions fix your issues....I suggest that you contact Pixel support directly.
You can contact Pixel support directly via your game settings menu.
Remember to check your email spam/junk folder for replies.
Don't send multiple tickets in quick succession to Pixel support otherwise their spambot might eat them.