What about the corner in the first half where he tried to punch but completely missed the flight of the ball? What about when the palmed the ball back into the 6 yard box instead of catching it in the second half? How about every single corner and cross that came in with him rooted to his line. Mate. He's shit.
None of those led to goals though, therefore they are not mistakes.
Football 101 is you rarely blame the keeper as its the defenders job to make sure there not called upon, unless he is pulling off Schmeichalesque saves and keeping a clean sheet every game some people will never be happy.