I have a BLU Vivo 8 running Android 7. It has been working great but a few days ago when I tried updating some apps, which I normally do manually, they would not update. The timer just kept going around and never finished downloading. I have tried all the solutions suggested in other threads...clearing cache/data, deleting and re-adding my Google account, etc. Now I seem to have lost WhatsApp completely after attempting an update, and I can not download it from the store. Anybody else experience this and found a solution?