http://iscoresports.com/

I can't add new player to existing team. When pressing the "add player" button it kicks me out of iscore. I've tried it in team manager and game manager and in in game line up. When I try to add player it kicks me out and crashes the app.

It sounds like you are on an older version of iScore and this issue has been fixed. Be sure to check for Updates on iScore in the App Store.