Continue developing a simple 2D online unity game

Hello everyone. I already have a unity game, it's up and running but i need to add some new features to it and correct some scripting errors. The game uses Photon for multiplayer so you should be able to use that. The game is about circles, each player is a circle that should has his name and picture on. your circle can shoot other players and decrease their health. once your is 0 you're dead. That's what i have now, what i need is the following. 1- Correct the compiler errors. 2- Clean the code 3- add the ability to log in with facebook and get the profile picture from it. That's all