I am not entirely sure, but wasn´t the last time in November? Is it the event no longer available? Because it surely was the only good event there was and now I haven´t been able to do any of those since quite some time. Instead you were spamming the all open event, which is nice, but well, only whales take good advantage of those because of the celestial potions or spamming resets to awaken. I have been playing conservatively since weeks to gather diamonds to reset as much as I can in double frags, but there is no sign of that event.
I have been asking for over a year for this, but WHY CAN´T WE HAVE A DAMN SCHEDULE!? If not monthly, at least weekly. This is a joke as everything in the game.