Mushroom rewards disappeared after app crash

I am reporting an issue where my Mushroom Battle rewards vanished due to a sudden game crash. When I was about to collect my 4-stared normal blue mushroom rewards, the app crashed and force-closed. After restarting and blowing the whistle to re-enter the reward screen, the largest fruit (nectar reward) had completely disappeared before I could collect it. I checked my inventory and the nectar was not credited to my account; only the postcard remained. Please look into this issue to prevent it from happening to other players, and I hope the missing rewards can be reissued to my account