We understand your frustration and are working on it! If you can share specifics about the crashes (what version you’re on, what OS, what action you were trying to take) we can investigate further.
An error occurred while saving the commentgjvose commented
Same issue here, occurring both on my iPhone 5 (where I get a number of different errors, usually with bad guys and quests, but sometimes power-ups too), and also when using mozilla browser. On the PC, I keep ending up at the page that says that you're "making things better," usually after I've just tried to add a quest or power-up, which is then gone... Bummer!