Q: i updated clash of clans it wont open..its a plain white app..

Hi jupz0905,

I understand that you recently have done an update to Clash of Clans and now you are opening the app to a white screen. To get it sorted out, look at the article below and walk your way through troubleshooting. You might need to delete the app and download it again. 

If an app you installed unexpectedly quits, stops responding, or won’t open
https://support.apple.com/en-us/HT201398

Take it easy