it deleted it off my phone

i love the app . i have kylies and kourtneys app to but after a couple of months of having it , it recently would close off every time i press on it and im paying 2.99 a month for me not to be able to use the app ? no . and then after that it deleted and wouldnt let me re download.. but when it works i love it my favorite app on my phone ! and i love them but please fix this ....

Mmddttly about Khloé Kardashian Official App