Crashes at startup – Мій Київстар－інтернет, дзвінки Review

Dear developers, what is the reason of an update that doesn't work? Did your Q&A department ever tested it before rolling out it to the market? I would suggest you to stop making any updates in features and leave everything as is until you teach yourself how the development processes are working. Thank you.
Review by Nikita Olenets on Мій Київстар－інтернет, дзвінки.