Data wiped on my account for the MCC event.

Please help! Yesterday, right when the MCC event opened up, I started playing and completed all the quests except for the 7 day challenge(I completed the first day challenge, however). This took me 5hr and 45mins to do (roughly). So, after playing nonstop for that long, I decided to take a short break. When I joined back to the MC event (30 or so minutes later), ALL of my data FOR THE EVENT had been WIPED. Completely. I no longer have any hats, mascot hats, completed challenges, coins, etc. All of it, gone. PLEASE HELP. I will go crazy if I have to do all of that again. The first picture in the attachment is of my progress BEFORE the wipe, and the second is AFTER the wiped data. Edit: I'm reporting this the day after the wipe had happened, in hopes time would fix the issue. Time did not fix the issue!