Can't open the game

Ok here is what exactly happened to me ... I played the game without signing into origin so I went to level 12 after that I tried to sing in the origin in the game .... The game just crashed ... Right now every time I want to play or open the game takes me to download page waiting for 5 to 10 mb download then the game vanish every single time please help

Note: game on ipad 2 latest update