On line 48, you have a closing curly bracket where you don't need one (delete it). On the other hand, your getComputerChoice() function doesn't have enough closing curly brackets, so add one more at the end of that function.
Something else I noticed was that in your getComputerChoice function you aren't setting 'randomNumber' equal to anything. Remove it from the parameters, and just set your 'Math.floor(Math.random)' equal to a variable (randomNumber in this case):
var randomNumber = Math.floor(Math.random() * 3);
If this solves your question, please be so kind as to mark this as the solution