Heh, I'm really curious about what caused him this reaction...
From what I can understand from his first sentence, since he's the supervisor of the Grail War he needs to take care of the mess resulted from the fights, and he's not too happy about the outcome of that last fight.
Darn, these guys... Who do you guys think is in charge of cleaning up the mess...Ahh.... My stomach...Although it was less annoying without that damnable Caladbolg there last time...