Hi, Is it possible to avoid erasing the application 'whatsapp'? Everything was fine. By mistake I had the iPhone connected to the computer when I updated to Mojave. My Mac is an early 2011 13" MBP. So, the Mojave update didn't work for the computer, but affected the applications on the phone. Twitter and some applications have asked me to type in again their corresponding password. However, twitter and the other applications don't recognize the typed in password. It is very strange, as if something inside with the phone's software may have been affected. With whatsapp, the case is not different. At first, it asks me to allow him 'to optimize', what literally takes a count from cero to one hundred. After the count, it tells me that it can not 'remake' itself and that the application should be erased. The problem is that I have a lot of information in my whatsapp chats. Thank you, kind regards, igmolinav : ) !!!